{"title":"TWSBI Piston-Fill Fountain Pens","description":"","products":[{"product_id":"twsbi-go-fountain-pen-in-sapphire","title":"TWSBI Go Fountain Pen in Sapphire","description":"\u003cp\u003eTWSBI (commonly pronounced \"twiz-bee\") continues to push the limits of their designs with the most affordable pen with a unique, easy-to-use filling system that makes inking up quick when you're \"on the GO.\"\u003c\/p\u003e\u003cp\u003eThe TWSBI Go has an all-resin body and clipless cap that allows the writer an unobstructed view into the inner workings of the pen. Instead of the piston mechanism on most other TWSBI pens, the Go has a spring-loaded plunger mechanism that sucks up ink in one simple stroke.\u003c\/p\u003e\u003cp\u003eStarting pen enthusiasts will find a TWSBI Go point size they enjoy from a selection of nibs that range from extra-fine, fine, medium, broad, and a 1.1mm stub if you fancy writing some calligraphy.\u003c\/p\u003eTWSBI Go Fountain Pen Specifications\u003cul\u003e\n\u003cli\u003eEdition: Standard\u003c\/li\u003e\n\u003cli\u003ePen Material: Transparent Resin\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Internal, Spring-loaded, Piston-Fill Mechanism (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.28 in. \/ 134mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 4.92 in. \/ 125mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): 6.77 in. \/ 172mm\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.58 in. \/ 14.5mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.39 in. \/ 10mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.60 oz. \/ 17g\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"Medium","offer_id":33781323595915,"sku":"M2530230","price":21.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":33781323628683,"sku":"M2530220","price":21.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":33781323661451,"sku":"M2530210","price":21.99,"currency_code":"USD","in_stock":true},{"title":"Broad","offer_id":33781323694219,"sku":"M2530240","price":21.99,"currency_code":"USD","in_stock":false},{"title":"1.1mm Stub","offer_id":33781323726987,"sku":"M2530250","price":21.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/products\/twsbi-go-fountain-pen-in-sapphire-273.jpg?v=1762201355"},{"product_id":"twsbi-go-fountain-pen-in-smoke","title":"TWSBI Go Fountain Pen in Smoke","description":"\u003cp\u003eTWSBI (commonly pronounced \"twiz-bee\") continues to push the limits of their designs with the most affordable pen with a unique, easy-to-use filling system that makes inking up quick when you're \"on the GO.\"\u003c\/p\u003e\u003cp\u003eThe TWSBI Go has an all-resin body and clipless cap that allows the writer an unobstructed view into the inner workings of the pen. Instead of the piston mechanism on most other TWSBI pens, the Go has a spring-loaded plunger mechanism that sucks up ink in one simple stroke.\u003c\/p\u003e\u003cp\u003eStarting pen enthusiasts will find a TWSBI Go point size they enjoy from a selection of nibs that range from extra-fine, fine, medium, broad, and a 1.1mm stub if you fancy writing some calligraphy.\u003c\/p\u003eTWSBI Go Fountain Pen Specifications\u003cul\u003e\n\u003cli\u003eEdition: Standard\u003c\/li\u003e\n\u003cli\u003ePen Material: Transparent Resin\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Internal, Spring-loaded, Piston-Fill Mechanism (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.28 in. \/ 134mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 4.92 in. \/ 125mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): 6.77 in. \/ 172mm\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.58 in. \/ 14.5mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.39 in. \/ 10mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.60 oz. \/ 17g\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"Medium","offer_id":33781328347275,"sku":"M2530280","price":21.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":33781328380043,"sku":"M2530270","price":21.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":33781328412811,"sku":"M2530260","price":21.99,"currency_code":"USD","in_stock":true},{"title":"Broad","offer_id":33781328445579,"sku":"M2530290","price":21.99,"currency_code":"USD","in_stock":false},{"title":"1.1mm Stub","offer_id":33781328478347,"sku":"M2530300","price":21.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/products\/twsbi-go-fountain-pen-in-smoke-673.jpg?v=1762201355"},{"product_id":"twsbi-diamond-580-fountain-pen-in-clear-demonstrator","title":"TWSBI Diamond 580 Fountain Pen in Clear Demonstrator","description":"\u003cp\u003eThe TWSBI (commonly pronounced \"twiz-bee\") Diamond 580 is the 21st Century interpretation of a classic writing instrument. While most of our modern communication devices lack transparency and customization, the TWSBI Diamond 580 excels with a transparent resin construction that can be disassembled using the included wrench.\u003c\/p\u003e\u003cp\u003eThe Diamond 580 represents the fusion of a traditional fountain pen with a modern industrial design. The result is an eye-catching writing instrument that is simultaneously appreciative of the past and relevant in the present. The modern writer can appreciate the stainless steel nib's smooth writing quality, the high volume ink capacity, and the ability to take good care of their pen.\u003c\/p\u003e\u003cp\u003eThe internal piston-filling mechanism holds about 2ml of ink and can be completely taken apart for thorough cleaning. Instructions and silicone grease are also included to aid in the maintenance of the pen.\u003c\/p\u003eTWSBI Diamond 580 Clear Demonstrator Fountain Pen Specifications\u003cul\u003e\n\u003cli\u003eEdition: Standard\u003c\/li\u003e\n\u003cli\u003ePen Material: Transparent Resin\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Internal Piston-Fill Mechanism (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.59 in. \/ 142mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 5.12 in. \/ 130mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): Pen cap cannot be posted.\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.52 in. \/ 13.3mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.4 in. \/ 10mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 1 oz. \/ 28g\u003c\/li\u003e\n\u003cli\u003ePackaged in clear case with a wrench and silicone grease.\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"Medium","offer_id":33781336277131,"sku":"M7443130","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":33781336309899,"sku":"M7443120","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":33781336342667,"sku":"M7443110","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":33781336375435,"sku":"M7443140","price":55.99,"currency_code":"USD","in_stock":false},{"title":"1.1mm Stub","offer_id":33781336408203,"sku":"M7443150","price":55.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/products\/twsbi-diamond-580-fountain-pen-in-clear-demonstrator-436.jpg?v=1762201360"},{"product_id":"twsbi-mini-fountain-pen-in-classic-black","title":"TWSBI Mini Fountain Pen in Classic Black","description":"\u003cp\u003eThe TWSBI (commonly pronounced \"twiz-bee\") Mini is like the little brother of the Diamond 580. Take all the parts you love about the Diamond 580 - the modern, industrial design, the transparent barrel, the piston mechanism, the smooth-writing stainless steel nib - then make it more compact for writers who prefer a postable, pocket fountain pen. That's the TWSBI Mini in a nutshell.\u003c\/p\u003e\u003cp\u003eThe internal piston-filling mechanism holds about 1ml of ink and can be completely taken apart for thorough cleaning. Instructions and silicone grease are also included to aid in the maintenance of the pen.\u003c\/p\u003eTWSBI Mini Fountain Pen Specifications\u003cul\u003e\n\u003cli\u003eEdition: Standard\u003c\/li\u003e\n\u003cli\u003ePen Material: Transparent Resin\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Internal Piston-Fill Mechanism (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 4.64 in. \/ 118mm \u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 4.24 in. \/ 107.5mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): 5.5 in. \/ 140mm\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.51 in. \/ 13mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.38 in. \/ 9.5mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.67 oz. \/ 19g\u003c\/li\u003e\n\u003cli\u003ePackaged in clear case with a wrench and silicone grease.\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"Medium","offer_id":33781338931339,"sku":"M7443090","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":33781338964107,"sku":"M7443080","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":33781338996875,"sku":"M7443070","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":33781339029643,"sku":"M7443300","price":55.99,"currency_code":"USD","in_stock":false},{"title":"1.1mm Stub","offer_id":33781339062411,"sku":"M7443310","price":55.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/products\/twsbi-mini-fountain-pen-in-classic-black-652.jpg?v=1762201360"},{"product_id":"twsbi-mini-fountain-pen-in-clear-demonstrator","title":"TWSBI Mini Fountain Pen in Clear Demonstrator","description":"\u003cp\u003eThe TWSBI (commonly pronounced \"twiz-bee\") Mini is like the little brother of the Diamond 580. Take all the parts you love about the Diamond 580 - the modern, industrial design, the transparent barrel, the piston mechanism, the smooth-writing stainless steel nib - then make it more compact for writers who prefer a postable, pocket fountain pen. That's the TWSBI Mini in a nutshell.\u003c\/p\u003e\u003cp\u003eThe internal piston-filling mechanism holds about 1ml of ink and can be completely taken apart for thorough cleaning. Instructions and silicone grease are also included to aid in the maintenance of the pen.\u003c\/p\u003eTWSBI Mini Fountain Pen Specifications\u003cli\u003eEdition: Standard\u003c\/li\u003e\u003cli\u003ePen Material: Transparent Resin\u003c\/li\u003e\u003cli\u003eNib Material: Stainless Steel\u003c\/li\u003e\u003cli\u003eFilling Mechanism: Internal Piston-Fill Mechanism (Bottled Ink Only)\u003c\/li\u003e\u003cli\u003ePen Length, Closed: 4.64 in. \/ 118mm \u003c\/li\u003e\u003cli\u003ePen Length, Open (Cap Off): 4.24 in. \/ 107.5mm\u003c\/li\u003e\u003cli\u003ePen Length, Open (Cap Posted): 5.5 in. \/ 140mm\u003c\/li\u003e\u003cli\u003ePen Max Diameter, Barrel: 0.51 in. \/ 13mm\u003c\/li\u003e\u003cli\u003ePen Diameter, Grip: 0.38 in. \/ 9.5mm\u003c\/li\u003e\u003cli\u003eTotal Weight: 0.67 oz. \/ 19g\u003c\/li\u003e\u003cli\u003ePackaged in clear case with a wrench and silicone grease.\u003c\/li\u003e\u003cli\u003eMade in Taiwan\u003c\/li\u003e","brand":"TWSBI Pens","offers":[{"title":"Medium","offer_id":33781341880459,"sku":"M7443010","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":33781341913227,"sku":"M7443000","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":33781341945995,"sku":"M7442990","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":33781341978763,"sku":"M7443020","price":55.99,"currency_code":"USD","in_stock":true},{"title":"1.1mm Stub","offer_id":33781342011531,"sku":"M7443270","price":55.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/products\/twsbi-mini-fountain-pen-in-clear-demonstrator-360.jpg?v=1762201361"},{"product_id":"twsbi-eco-fountain-pen-in-black","title":"TWSBI Eco Fountain Pen in Black","description":"\u003cp\u003eThe TWSBI (commonly pronounced \"twiz-bee\") Eco is the answer to the common question, \"what is a good starter fountain pen?\" The piston-filling Eco provides all the enjoyment of owning a modern fountain pen at a fraction of the cost.\u003c\/p\u003e\u003cp\u003eThe transparent resin barrel gives the writer a clear view of the ink sloshing around as they write. A dependable, iridium-tipped steel nib writes smoothly in a variety of point sizes to suit your writing style. The nib keeps fresh with ink thanks to the inner cap seal.\u003c\/p\u003e\u003cp\u003eAfter writing hundreds, if not thousands, of pages, you can maintain your TWSBI Eco using the included wrench and silicone grease.\u003c\/p\u003eTWSBI Eco Fountain Pen Specifications\u003cul\u003e\n\u003cli\u003eEdition: Standard\u003c\/li\u003e\n\u003cli\u003ePen Material: Solid and Transparent Resins\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Internal Piston-Fill Mechanism (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.45 in. \/ 138.8mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 5.18 in. \/ 131.5mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): 6.60 in. \/ 167.5mm\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.5 in. \/ 12.8mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.36 in. \/ 9mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.74 oz. \/ 21g\u003c\/li\u003e\n\u003cli\u003ePackaged in clear case with a wrench and silicone grease.\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"Medium","offer_id":33781353873547,"sku":"M7444300","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":33781353906315,"sku":"M7444290","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":33781353939083,"sku":"M7444280","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":33781353971851,"sku":"M7444310","price":36.99,"currency_code":"USD","in_stock":false},{"title":"1.1mm Stub","offer_id":33781354004619,"sku":"M7444320","price":36.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/products\/twsbi-eco-fountain-pen-in-black-619.jpg?v=1762201366"},{"product_id":"twsbi-diamond-580al-fountain-pen-in-silver","title":"TWSBI Diamond 580AL Fountain Pen in Silver","description":"\u003cp\u003eThe TWSBI (commonly pronounced \"twiz-bee\") Diamond 580 is the 21st Century interpretation of a classic writing instrument. 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A dependable, iridium-tipped steel nib writes smoothly in a variety of point sizes to suit your writing style. The nib keeps fresh with ink thanks to the inner cap seal.\u003c\/p\u003e\u003cp\u003eAfter writing hundreds, if not thousands, of pages, you can maintain your TWSBI Eco using the included wrench and silicone grease.\u003c\/p\u003eTWSBI Eco Fountain Pen Specifications\u003cul\u003e\n\u003cli\u003eEdition: Standard\u003c\/li\u003e\n\u003cli\u003ePen Material: Solid and Transparent Resins\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Internal Piston-Fill Mechanism (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.45 in. \/ 138.8mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 5.18 in. \/ 131.5mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): 6.60 in. \/ 167.5mm\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.5 in. \/ 12.8mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.36 in. \/ 9mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.74 oz. \/ 21g\u003c\/li\u003e\n\u003cli\u003ePackaged in clear case with a wrench and silicone grease.\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"Medium","offer_id":33781367931019,"sku":"M7444350","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":33781367963787,"sku":"M7444340","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":33781367996555,"sku":"M7444330","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":33781368029323,"sku":"M7444360","price":36.99,"currency_code":"USD","in_stock":false},{"title":"1.1mm Stub","offer_id":33781368062091,"sku":"M7444370","price":36.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/products\/twsbi-eco-fountain-pen-in-white-675.jpg?v=1762201367"},{"product_id":"twsbi-eco-fountain-pen-in-clear-demonstrator","title":"TWSBI Eco Fountain Pen in Clear Demonstrator","description":"\u003cp\u003eThe TWSBI (commonly pronounced \"twiz-bee\") Eco is the answer to the common question, \"what is a good starter fountain pen?\" The piston-filling Eco provides all the enjoyment of owning a modern fountain pen at a fraction of the cost.\u003c\/p\u003e\u003cp\u003eThe transparent resin barrel gives the writer a clear view of the ink sloshing around as they write. 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The nib keeps fresh with ink thanks to the inner cap seal.\u003c\/p\u003e\u003cp\u003eAfter writing hundreds, if not thousands, of pages, you can maintain your TWSBI Eco using the included wrench and silicone grease.\u003c\/p\u003eTWSBI Eco Fountain Pen Specifications\u003cul\u003e\n\u003cli\u003eEdition: Standard\u003c\/li\u003e\n\u003cli\u003ePen Material: Transparent Resin\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Internal Piston-Fill Mechanism (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.45 in. \/ 138.8mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 5.18 in. \/ 131.5mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): 6.60 in. \/ 167.5mm\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.5 in. \/ 12.8mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.36 in. \/ 9mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.74 oz. \/ 21g\u003c\/li\u003e\n\u003cli\u003ePackaged in clear case with a wrench and silicone grease.\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"Medium","offer_id":33781371568267,"sku":"M7445320","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":33781371601035,"sku":"M7445310","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":33781371633803,"sku":"M7445300","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":33781371666571,"sku":"M7445330","price":36.99,"currency_code":"USD","in_stock":false},{"title":"1.1mm Stub","offer_id":33781371699339,"sku":"M7445340","price":36.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/products\/twsbi-eco-fountain-pen-in-clear-demonstrator-999.jpg?v=1762201368"},{"product_id":"twsbi-mini-fountain-pen-in-al-silver","title":"TWSBI Mini Fountain Pen in AL Silver","description":"\u003cp\u003eThe TWSBI (commonly pronounced \"twiz-bee\") Mini is like the little brother of the Diamond 580. Take all the parts you love about the Diamond 580 - the modern, industrial design, the transparent barrel, the piston mechanism, the smooth-writing stainless steel nib - then make it more compact for writers who prefer a postable, pocket fountain pen. That's the TWSBI Mini in a nutshell. To enhance the style and luxury of this pen, the Mini AL has an aluminum grip section and piston mechanism.\u003c\/p\u003e\u003cp\u003eThe internal piston-filling mechanism holds about 1ml of ink and can be completely taken apart for thorough cleaning. Instructions and silicone grease are also included to aid in the maintenance of the pen.\u003c\/p\u003eTWSBI Mini AL Fountain Pen Specifications\u003cul\u003e\n\u003cli\u003eEdition: Standard\u003c\/li\u003e\n\u003cli\u003ePen Material: Transparent Resin and aluminum\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Internal Piston-Fill Mechanism (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 4.64 in. \/ 118mm \u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 4.24 in. \/ 107.5mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): 5.5 in. \/ 140mm\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.51 in. \/ 13mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.38 in. \/ 9.5mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.67 oz. \/ 19g\u003c\/li\u003e\n\u003cli\u003ePackaged in clear case with a wrench and silicone grease.\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"Medium","offer_id":33781382119563,"sku":"M7445020","price":65.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":33781382152331,"sku":"M7445010","price":65.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":33781382185099,"sku":"M7445000","price":65.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":33781382217867,"sku":"M7445030","price":65.99,"currency_code":"USD","in_stock":false},{"title":"1.1mm Stub","offer_id":33781382250635,"sku":"M7445040","price":65.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/products\/twsbi-mini-fountain-pen-in-al-silver-822.jpg?v=1762201368"},{"product_id":"twsbi-eco-fountain-pen-in-transparent-blue","title":"TWSBI Eco Fountain Pen in Transparent Blue","description":"\u003cp\u003eThe TWSBI (commonly pronounced \"twiz-bee\") Eco is the answer to the common question, \"what is a good starter fountain pen?\" The piston-filling Eco provides all the enjoyment of owning a modern fountain pen at a fraction of the cost.\u003c\/p\u003e\u003cp\u003eThe transparent resin barrel gives the writer a clear view of the ink sloshing around as they write. A dependable, iridium-tipped steel nib writes smoothly in a variety of point sizes to suit your writing style. The nib keeps fresh with ink thanks to the inner cap seal.\u003c\/p\u003e\u003cp\u003eAfter writing hundreds, if not thousands, of pages, you can maintain your TWSBI Eco using the included wrench and silicone grease.\u003c\/p\u003eTWSBI Eco Fountain Pen Specifications\u003cul\u003e\n\u003cli\u003eEdition: Standard\u003c\/li\u003e\n\u003cli\u003ePen Material: Transparent and Translucent Color Resins\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Internal Piston-Fill Mechanism (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.45 in. \/ 138.8mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 5.18 in. \/ 131.5mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): 6.60 in. \/ 167.5mm\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.5 in. \/ 12.8mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.36 in. \/ 9mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.74 oz. \/ 21g\u003c\/li\u003e\n\u003cli\u003ePackaged in clear case with a wrench and silicone grease.\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"Medium","offer_id":33781406105739,"sku":"M7446880","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":33781406138507,"sku":"M7446870","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":33781406171275,"sku":"M7446860","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":33781406204043,"sku":"M7446890","price":36.99,"currency_code":"USD","in_stock":false},{"title":"1.1mm Stub","offer_id":33781406236811,"sku":"M7446900","price":32.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/products\/twsbi-eco-fountain-pen-in-transparent-blue-627.jpg?v=1762201371"},{"product_id":"twsbi-eco-t-fountain-pen-in-clear-demonstrator","title":"TWSBI Eco-T Fountain Pen in Clear Demonstrator","description":"\u003cp\u003eThe TWSBI (commonly pronounced \"twiz-bee\") Eco is the answer to the common question, \"what is a good starter fountain pen?\" The piston-filling Eco provides all the enjoyment of owning a modern fountain pen at a fraction of the cost. The Eco-T gives beginners a more pronounced, triangular (that's where the \"T\" comes from) grip section to help properly grip their pen. The cap and piston-knob are also shaped in a rotary triangular design.\u003c\/p\u003e\u003cp\u003eThe transparent resin barrel gives the writer a clear view of the ink sloshing around as they write. A dependable, iridium-tipped steel nib writes smoothly in a variety of point sizes to suit your writing style. The nib keeps fresh with ink thanks to the inner cap seal.\u003c\/p\u003e\u003cp\u003eAfter writing hundreds, if not thousands, of pages, you can maintain your TWSBI Eco-T using the included wrench and silicone grease.\u003c\/p\u003eTWSBI Eco-T Fountain Pen Specifications\u003cul\u003e\n\u003cli\u003eEdition: Standard\u003c\/li\u003e\n\u003cli\u003ePen Material: Transparent Resin\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Internal Piston-Fill Mechanism (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.45 in. \/ 138.8mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 5.18 in. \/ 131.5mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): 6.60 in. \/ 167.5mm\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.5 in. \/ 12.8mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.37 in. \/ 9.5mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.74 oz. \/ 21g\u003c\/li\u003e\n\u003cli\u003ePackaged in clear case with a wrench and silicone grease.\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"Medium","offer_id":33781409579147,"sku":"M7446380","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":33781409611915,"sku":"M7446370","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":33781409644683,"sku":"M7446360","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":33781409677451,"sku":"M7446390","price":36.99,"currency_code":"USD","in_stock":false},{"title":"1.1mm Stub","offer_id":33781409710219,"sku":"M7446400","price":36.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/products\/twsbi-eco-t-fountain-pen-in-clear-demonstrator-636.jpg?v=1762201373"},{"product_id":"twsbi-go-fountain-pen-in-clear-demonstrator","title":"TWSBI Go Fountain Pen in Clear Demonstrator","description":"\u003cp\u003eTWSBI (commonly pronounced \"twiz-bee\") continues to push the limits of their designs with the most affordable pen with a unique, easy-to-use filling system that makes inking up quick when you're \"on the GO.\"\u003c\/p\u003e\u003cp\u003eThe TWSBI Go has an all-resin body and clipless cap that allows the writer an unobstructed view into the inner workings of the pen. Instead of the piston mechanism on most other TWSBI pens, the Go has a spring-loaded plunger mechanism that sucks up ink in one simple stroke.\u003c\/p\u003e\u003cp\u003eStarting pen enthusiasts will find a TWSBI Go point size they enjoy from a selection of nibs that range from extra-fine, fine, medium, broad, and a 1.1mm stub if you fancy writing some calligraphy.\u003c\/p\u003eTWSBI Go Fountain Pen Specifications\u003cul\u003e\n\u003cli\u003eEdition: Standard\u003c\/li\u003e\n\u003cli\u003ePen Material: Transparent Resin\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Internal, Spring-loaded, Piston-Fill Mechanism (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.28 in. \/ 134mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 4.92 in. \/ 125mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): 6.77 in. \/ 172mm\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.58 in. \/ 14.5mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.39 in. \/ 10mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.60 oz. \/ 17g\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"Medium","offer_id":33781429043339,"sku":"M7447330","price":21.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":33781429076107,"sku":"M7447320","price":21.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":33781429108875,"sku":"M7447310","price":21.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":33781429141643,"sku":"M7447340","price":21.99,"currency_code":"USD","in_stock":false},{"title":"1.1mm Stub","offer_id":33781429174411,"sku":"M7447350","price":18.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/products\/twsbi-go-fountain-pen-in-clear-demonstrator-646.jpg?v=1762201374"},{"product_id":"twsbi-eco-t-fountain-pen-in-mint-blue-special-edition","title":"TWSBI Eco-T Fountain Pen in Mint Blue Special Edition","description":"\u003cp\u003eThe TWSBI (commonly pronounced \"twiz-bee\") Eco is the answer to the common question, \"what is a good starter fountain pen?\" The piston-filling Eco provides all the enjoyment of owning a modern fountain pen at a fraction of the cost. 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While most of our modern communication devices lack transparency and customization, the TWSBI Diamond 580 excels with a transparent resin construction that can be disassembled using the included wrench.\u003c\/p\u003e\u003cp\u003eThe Diamond 580 represents the fusion of a traditional fountain pen with a modern industrial design. The result is an eye-catching writing instrument that is simultaneously appreciative of the past and relevant in the present. The modern writer can appreciate the stainless steel nib's smooth writing quality, the high volume ink capacity, and the ability to take good care of their pen.\u003c\/p\u003e\u003cp\u003eThe Diamond 580ALR has an aluminum grip section and piston rod to add substantial style to this fountain pen. The matte grip section and cap top ring feature concentric, ringed engravings.\u003c\/p\u003e\u003cp\u003eThe internal piston-filling mechanism holds about 2ml of ink and can be completely taken apart for thorough cleaning. 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While most of our modern communication devices lack transparency and customization, the TWSBI Diamond 580 excels with a transparent resin construction that can be disassembled using the included wrench.\u003c\/p\u003e\u003cp\u003eThe Diamond 580 represents the fusion of a traditional fountain pen with a modern industrial design. The result is an eye-catching writing instrument that is simultaneously appreciative of the past and relevant in the present. The modern writer can appreciate the stainless steel nib's smooth writing quality, the high volume ink capacity, and the ability to take good care of their pen.\u003c\/p\u003e\u003cp\u003eThe Diamond 580ALR has an aluminum grip section and piston rod to add substantial style to this fountain pen. The matte grip section and cap top ring feature concentric, ringed engravings.\u003c\/p\u003e\u003cp\u003eThe internal piston-filling mechanism holds about 2ml of ink and can be completely taken apart for thorough cleaning. Instructions and silicone grease are also included to aid in the maintenance of the pen.\u003c\/p\u003eTWSBI Diamond 580ALR Fountain Pen Specifications\u003cul\u003e\n\u003cli\u003eEdition: Special Release\u003c\/li\u003e\n\u003cli\u003ePen Material: Transparent Resin and Aluminum\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Internal Piston-Fill Mechanism (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.59 in. \/ 142mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 5.12 in. \/ 130mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): Pen cap cannot be posted.\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.52 in. \/ 13.3mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.4 in. \/ 10mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 1 oz. \/ 28g\u003c\/li\u003e\n\u003cli\u003ePackaged in clear case with a wrench and silicone grease.\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"Broad","offer_id":33781450277003,"sku":"M7447950","price":72.99,"currency_code":"USD","in_stock":false},{"title":"1.1mm Stub","offer_id":33781450309771,"sku":"M7447960","price":72.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":33781450244235,"sku":"M7447920","price":72.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":33781450178699,"sku":"M7447930","price":72.99,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":33781450145931,"sku":"M7447940","price":72.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/products\/twsbi-diamond-580alr-fountain-pen-in-prussian-blue-special-edition-527.jpg?v=1762201377"},{"product_id":"twsbi-eco-fountain-pen-in-white-rose-gold","title":"TWSBI Eco Fountain Pen in White Rose Gold","description":"\u003cp\u003eThe TWSBI (commonly pronounced \"twiz-bee\") Eco is the answer to the common question, \"what is a good starter fountain pen?\" The piston-filling Eco provides all the enjoyment of owning a modern fountain pen at a fraction of the cost.\u003c\/p\u003e\u003cp\u003eThe transparent resin barrel gives the writer a clear view of the ink sloshing around as they write. A dependable, iridium-tipped steel nib writes smoothly in a variety of point sizes to suit your writing style. The nib keeps fresh with ink thanks to the inner cap seal.\u003c\/p\u003e\u003cp\u003eAfter writing hundreds, if not thousands, of pages, you can maintain your TWSBI Eco using the included wrench and silicone grease.\u003c\/p\u003eTWSBI Eco Fountain Pen Specifications\u003cul\u003e\n\u003cli\u003eEdition: Standard\u003c\/li\u003e\n\u003cli\u003ePen Material: Solid and Transparent Resins with Rose Gold Appointments\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Internal Piston-Fill Mechanism (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.45 in. \/ 138.8mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 5.18 in. \/ 131.5mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): 6.60 in. \/ 167.5mm\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.5 in. \/ 12.8mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.36 in. \/ 9mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.74 oz. \/ 21g\u003c\/li\u003e\n\u003cli\u003ePackaged in clear case with a wrench and silicone grease.\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"Medium","offer_id":33792720240779,"sku":"M7447720","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":33792720273547,"sku":"M7447710","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":33792720306315,"sku":"M7447700","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":33792720339083,"sku":"M7447730","price":55.99,"currency_code":"USD","in_stock":false},{"title":"1.1mm Stub","offer_id":33792720371851,"sku":"M7447740","price":55.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/products\/twsbi-eco-fountain-pen-in-white-rose-gold-642.jpg?v=1762201385"},{"product_id":"twsbi-eco-fountain-pen-in-transparent-purple-special-edition","title":"TWSBI Eco Fountain Pen in Transparent Purple Special Edition","description":"\u003cp\u003eThe TWSBI (commonly pronounced \"twiz-bee\") Eco is the answer to the common question, \"what is a good starter fountain pen?\" The piston-filling Eco provides all the enjoyment of owning a modern fountain pen at a fraction of the cost.\u003c\/p\u003e\u003cp\u003eThe transparent resin barrel gives the writer a clear view of the ink sloshing around as they write. A dependable, iridium-tipped steel nib writes smoothly in a variety of point sizes to suit your writing style. The nib keeps fresh with ink thanks to the inner cap seal.\u003c\/p\u003e\u003cp\u003eAfter writing hundreds, if not thousands, of pages, you can maintain your TWSBI Eco using the included wrench and silicone grease.\u003c\/p\u003eTWSBI Eco Fountain Pen Specifications\u003cul\u003e\n\u003cli\u003eEdition: Special Release\u003c\/li\u003e\n\u003cli\u003ePen Material: Transparent and Translucent Color Resins\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Internal Piston-Fill Mechanism (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.45 in. \/ 138.8mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 5.18 in. \/ 131.5mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): 6.60 in. \/ 167.5mm\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.5 in. \/ 12.8mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.36 in. \/ 9mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.74 oz. \/ 21g\u003c\/li\u003e\n\u003cli\u003ePackaged in clear case with a wrench and silicone grease.\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"Medium","offer_id":33792749305995,"sku":"M7447660","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":33792749338763,"sku":"M7447650","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":33792749371531,"sku":"M7447640","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":33792749404299,"sku":"M7447670","price":36.99,"currency_code":"USD","in_stock":false},{"title":"1.1mm Stub","offer_id":33792749437067,"sku":"M7447680","price":36.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/products\/twsbi-eco-fountain-pen-in-transparent-purple-special-edition-805.jpg?v=1762201386"},{"product_id":"twsbi-eco-fountain-pen-in-smoke-rose-gold","title":"TWSBI Eco Fountain Pen in Smoke Rose Gold","description":"\u003cp\u003eThe TWSBI (commonly pronounced \"twiz-bee\") Eco is the answer to the common question, \"what is a good starter fountain pen?\" The piston-filling Eco provides all the enjoyment of owning a modern fountain pen at a fraction of the cost.\u003c\/p\u003e\u003cp\u003eThe transparent resin barrel gives the writer a clear view of the ink sloshing around as they write. A dependable, iridium-tipped steel nib writes smoothly in a variety of point sizes to suit your writing style. The nib keeps fresh with ink thanks to the inner cap seal.\u003c\/p\u003e\u003cp\u003eAfter writing hundreds, if not thousands, of pages, you can maintain your TWSBI Eco using the included wrench and silicone grease.\u003c\/p\u003eTWSBI Eco Fountain Pen Specifications\u003cul\u003e\n\u003cli\u003eEdition: 2021 Special Edition\u003c\/li\u003e\n\u003cli\u003ePen Material: Solid and Transparent Resins with Rose Gold Appointments\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Internal Piston-Fill Mechanism (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.45 in. \/ 138.8mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 5.18 in. \/ 131.5mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): 6.60 in. \/ 167.5mm\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.5 in. \/ 12.8mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.36 in. \/ 9mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.74 oz. \/ 21g\u003c\/li\u003e\n\u003cli\u003ePackaged in clear case with a wrench and silicone grease.\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"Medium","offer_id":34478652915851,"sku":"M7447990","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":34478652948619,"sku":"M7447980","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":34478652981387,"sku":"M7447970","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":34478653014155,"sku":"M7448000","price":55.99,"currency_code":"USD","in_stock":false},{"title":"1.1mm Stub","offer_id":34478653046923,"sku":"M7448010","price":55.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/products\/twsbi-eco-fountain-pen-in-smoke-rose-gold-239.jpg?v=1762202120"},{"product_id":"twsbi-classic-sapphire-fountain-pen","title":"TWSBI Classic Sapphire Fountain Pen","description":"\u003cp\u003eThe TWSBI Classic is highly appealing in both form and function. It is slightly slimmer than the Diamond 580  and is available in three finishes: black, blue or burgundy. It's high-capacity piston filling mechanism is easily operated by twisting the knob at the end of the barrel counter-clockwise to extend the piston, submerging the nib in ink, then screwing the knob tight to retract the piston, drawing ink into the pen straight from the bottle.\u003c\/p\u003e\n\u003cp\u003eIt has a transparent ink window in the grip section to gage ink levels and two o-rings on the piston knob for posting the cap securely. Since it has a piston fill mechanism, it can only be filled using an ink bottle.\u003c\/p\u003e\n\u003cp\u003eIt comes with a wrench and a vial of silicone grease you can use for at-home maintenance. This pen may come with ink residue in the nib from being dip tested by TWSBI at the factory. As with all new fountain pens, we recommend giving your TWSBI a good cleaning before you use it.\u003c\/p\u003e\n\u003cp\u003eTWSBI Classic Sapphire Fountain Pen Features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePen Material: Resin and Aluminum\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eCap: Postable\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Internal Piston-Fill Mechanism\u003c\/li\u003e\n\u003cli\u003eCompatible Refills: Bottled Inks\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.39 in. \/ 137mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 5.12 in. \/ 130mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): 6.42 in. \/163mm\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.5 in. \/ 13mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.36 in. \/ 10mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: .56oz. \/ 16g\u003c\/li\u003e\n\u003cli\u003eMax Ink Capacity: 1.50ml\u003c\/li\u003e\n\u003cli\u003ePackaged in clear case with a wrench and silicone grease.\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv\u003e\u003c\/div\u003e","brand":"TWSBI Pens","offers":[{"title":"Medium","offer_id":34486537846923,"sku":"M7443720","price":50.0,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":34486537879691,"sku":"M7443680","price":50.0,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":34486537912459,"sku":"M7443640","price":50.0,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":34486537945227,"sku":"M7443760","price":50.0,"currency_code":"USD","in_stock":false},{"title":"1.1mm Stub","offer_id":34486537977995,"sku":"M7443800","price":58.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/products\/twsbi-classic-sapphire-fountain-pen-681.jpg?v=1762202146"},{"product_id":"twsbi-diamond-580alr-fountain-pen-in-navy-blue-special-edition","title":"TWSBI Diamond 580ALR Fountain Pen in Navy Blue Special Edition","description":"\u003cp\u003eThe TWSBI (commonly pronounced \"twiz-bee\") Diamond 580 is the 21st Century interpretation of a classic writing instrument. While most of our modern communication devices lack transparency and customization, the TWSBI Diamond 580 excels with a transparent resin construction that can be disassembled using the included wrench.\u003c\/p\u003e\u003cp\u003eThe Diamond 580 represents the fusion of a traditional fountain pen with a modern industrial design. The result is an eye-catching writing instrument that is simultaneously appreciative of the past and relevant in the present. The modern writer can appreciate the stainless steel nib's smooth writing quality, the high volume ink capacity, and the ability to take good care of their pen.\u003c\/p\u003e\u003cp\u003eThe Diamond 580ALR has an aluminum grip section and piston rod to add substantial style to this fountain pen. The matte grip section and cap top ring feature concentric, ringed engravings.\u003c\/p\u003e\u003cp\u003eThe internal piston-filling mechanism holds about 2ml of ink and can be completely taken apart for thorough cleaning. Instructions and silicone grease are also included to aid in the maintenance of the pen.\u003c\/p\u003eTWSBI Diamond 580ALR Fountain Pen Specifications\u003cul\u003e\n\u003cli\u003eEdition: 2021 Special Release\u003c\/li\u003e\n\u003cli\u003ePen Material: Transparent Resin and Aluminum\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Internal Piston-Fill Mechanism (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.59 in. \/ 142mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 5.12 in. \/ 130mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): Pen cap cannot be posted.\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.52 in. \/ 13.3mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.4 in. \/ 10mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 1 oz. \/ 28g\u003c\/li\u003e\n\u003cli\u003ePackaged in clear case with a wrench and silicone grease.\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"Medium","offer_id":39454538793099,"sku":"M7448040","price":72.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":39454538825867,"sku":"M7448030","price":72.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":39454538858635,"sku":"M7448020","price":72.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":39454538891403,"sku":"M7448050","price":72.99,"currency_code":"USD","in_stock":false},{"title":"1.1mm Stub","offer_id":39454538924171,"sku":"M7448060","price":72.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/products\/twsbi-diamond-580alr-fountain-pen-in-navy-blue-special-edition-517.jpg?v=1762269160"},{"product_id":"twsbi-eco-fountain-pen-in-cerulean","title":"TWSBI Eco Fountain Pen in Cerulean","description":"\u003cp\u003eThe TWSBI (commonly pronounced \"twiz-bee\") Eco is the answer to the common question, \"what is a good starter fountain pen?\" The piston-filling Eco provides all the enjoyment of owning a modern fountain pen at a fraction of the cost.\u003c\/p\u003e\u003cp\u003eThe transparent resin barrel gives the writer a clear view of the ink sloshing around as they write. A dependable, iridium-tipped steel nib writes smoothly in a variety of point sizes to suit your writing style. The nib keeps fresh with ink thanks to the inner cap seal.\u003c\/p\u003e\u003cp\u003eAfter writing hundreds, if not thousands, of pages, you can maintain your TWSBI Eco using the included wrench and silicone grease.\u003c\/p\u003e\u003cp\u003eTWSBI Eco Cerulean Fountain Pen Specifications\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eEdition: 2022 Release\u003c\/li\u003e\n\u003cli\u003ePen Material: Transparent resin barrel with translucent, cerulean cap and piston knob\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Internal Piston-Fill Mechanism (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.45 in. \/ 138.8mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 5.18 in. \/ 131.5mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): 6.60 in. \/ 167.5mm\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.5 in. \/ 12.8mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.36 in. \/ 9mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.74 oz. \/ 21g\u003c\/li\u003e\n\u003cli\u003ePackaged in clear case with a wrench and silicone grease.\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"Medium","offer_id":40830609752203,"sku":"M7449080","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":40830609817739,"sku":"M7449070","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":40830609850507,"sku":"M7449060","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":40830609883275,"sku":"M7449090","price":36.99,"currency_code":"USD","in_stock":false},{"title":"1.1mm Stub","offer_id":40830609916043,"sku":"M7449100","price":36.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/products\/twsbi-eco-fountain-pen-in-cerulean-154.jpg?v=1762270426"},{"product_id":"twsbi-eco-fountain-pen-in-transparent-yellow","title":"TWSBI Eco Fountain Pen in Transparent Yellow","description":"\u003cp\u003eThe TWSBI (commonly pronounced \"twiz-bee\") Eco is the answer to the common question, \"what is a good starter fountain pen?\" The piston-filling Eco provides all the enjoyment of owning a modern fountain pen at a fraction of the cost.\u003c\/p\u003e\u003cp\u003eThe transparent resin barrel gives the writer a clear view of the ink sloshing around as they write. A dependable, iridium-tipped steel nib writes smoothly in a variety of point sizes to suit your writing style. The nib keeps fresh with ink thanks to the inner cap seal.\u003c\/p\u003e\u003cp\u003eAfter writing hundreds, if not thousands, of pages, you can maintain your TWSBI Eco using the included wrench and silicone grease.\u003c\/p\u003e\u003cp\u003eTWSBI Eco Transparent Yellow Fountain Pen Specifications\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eEdition: 2022 Release\u003c\/li\u003e\n\u003cli\u003ePen Material: Transparent resin barrel with translucent, yellow cap and piston knob\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Internal Piston-Fill Mechanism (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.45 in. \/ 138.8mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 5.18 in. \/ 131.5mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): 6.60 in. \/ 167.5mm\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.5 in. \/ 12.8mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.36 in. \/ 9mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.74 oz. \/ 21g\u003c\/li\u003e\n\u003cli\u003ePackaged in clear case with a wrench and silicone grease.\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"Medium","offer_id":40912561569931,"sku":"M7448550","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":40912561602699,"sku":"M7448540","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":40912561635467,"sku":"M7448530","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":40912561668235,"sku":"M7448560","price":36.99,"currency_code":"USD","in_stock":false},{"title":"1.1mm Stub","offer_id":40912561701003,"sku":"M7448570","price":36.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/products\/twsbi-eco-fountain-pen-in-transparent-yellow-761.jpg?v=1762270478"},{"product_id":"twsbi-eco-fountain-pen-in-glow-purple","title":"TWSBI Eco Fountain Pen in Glow Purple","description":"\u003cp\u003eThe TWSBI (commonly pronounced \"twiz-bee\") Eco is the answer to the common question, \"what is a good starter fountain pen?\" The piston-filling Eco provides all the enjoyment of owning a modern fountain pen at a fraction of the cost.\u003c\/p\u003e\u003cp\u003eThe transparent resin barrel gives the writer a clear view of the ink sloshing around as they write. A dependable, iridium-tipped steel nib writes smoothly in a variety of point sizes to suit your writing style. The nib keeps fresh with ink thanks to the inner cap seal.\u003c\/p\u003e\u003cp\u003eAfter writing hundreds, if not thousands, of pages, you can maintain your TWSBI Eco using the included wrench and silicone grease.\u003c\/p\u003e\u003cp\u003eThe \"Glow Blue\" style has a translucent purple cap and piston knob. These parts will glow in the dark after the material has had a chance to charge in direct light.\u003c\/p\u003eTWSBI Eco Glow Purple Fountain Pen Specifications\u003cul\u003e\n\u003cli\u003eEdition: 2022 Release\u003c\/li\u003e\n\u003cli\u003ePen Material: Transparent resin barrel with translucent, glow-in-the-dark purple cap and piston knob\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Internal Piston-Fill Mechanism (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.45 in. \/ 138.8mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 5.18 in. \/ 131.5mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): 6.60 in. \/ 167.5mm\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.5 in. \/ 12.8mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.36 in. \/ 9mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.74 oz. \/ 21g\u003c\/li\u003e\n\u003cli\u003ePackaged in clear case with a wrench and silicone grease.\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"Medium","offer_id":40960281411723,"sku":"M7449430","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":40960281444491,"sku":"M7449420","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":40960281477259,"sku":"M7449410","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":40960281510027,"sku":"M7449440","price":36.99,"currency_code":"USD","in_stock":false},{"title":"1.1mm Stub","offer_id":40960281542795,"sku":"M7449450","price":36.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/products\/twsbi-eco-fountain-pen-in-glow-purple-306.jpg?v=1762270519"},{"product_id":"twsbi-eco-t-fountain-pen-in-saffron","title":"TWSBI Eco-T Fountain Pen in Saffron","description":"\u003cp\u003eThe TWSBI (commonly pronounced \"twiz-bee\") Eco is the answer to the common question, \"what is a good starter fountain pen?\" The piston-filling Eco provides all the enjoyment of owning a modern fountain pen at a fraction of the cost. The Eco-T gives beginners a more pronounced, triangular (that's where the \"T\" comes from) grip section to help properly grip their pen. The cap and piston-knob are also shaped in a rotary triangular design.\u003c\/p\u003e\u003cp\u003eThe transparent resin barrel gives the writer a clear view of the ink sloshing around as they write. A dependable, iridium-tipped steel nib writes smoothly in a variety of point sizes to suit your writing style. The nib keeps fresh with ink thanks to the inner cap seal.\u003c\/p\u003e\u003cp\u003eAfter writing hundreds, if not thousands, of pages, you can maintain your TWSBI Eco-T using the included wrench and silicone grease.\u003c\/p\u003eTWSBI Eco-T Fountain Pen Specifications\u003cul\u003e\n\u003cli\u003eEdition: Special Release\u003c\/li\u003e\n\u003cli\u003ePen Material: Solid and Transparent Resins\u003c\/li\u003e\n\u003cli\u003eTrim: Silver\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Internal Piston-Fill Mechanism (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.45 in. \/ 138.8mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 5.18 in. \/ 131.5mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): 6.60 in. \/ 167.5mm\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.5 in. \/ 12.8mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.37 in. \/ 9.5mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.74 oz. \/ 21g\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"1.1mm Stub","offer_id":41224314159243,"sku":"M7448720","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":41224314192011,"sku":"M7448710","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":41224314224779,"sku":"M7448700","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":41224314257547,"sku":"M7448690","price":32.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":41224314290315,"sku":"M7448680","price":36.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/products\/twsbi-eco-t-fountain-pen-in-saffron-943.jpg?v=1762270765"},{"product_id":"twsbi-eco-fountain-pen-in-persian-green","title":"TWSBI Eco Fountain Pen in Persian Green","description":"\u003cp\u003eThe TWSBI (commonly pronounced \"twiz-bee\") Eco is the answer to the common question, \"what is a good starter fountain pen?\" The piston-filling Eco provides all the enjoyment of owning a modern fountain pen at a fraction of the cost.\u003c\/p\u003e\u003cp\u003eThe transparent resin barrel gives the writer a clear view of the ink sloshing around as they write. A dependable, iridium-tipped steel nib writes smoothly in a variety of point sizes to suit your writing style. The nib keeps fresh with ink thanks to the inner cap seal.\u003c\/p\u003e\u003cp\u003eAfter writing hundreds, if not thousands, of pages, you can maintain your TWSBI Eco using the included wrench and silicone grease.\u003c\/p\u003e\u003cp\u003eTWSBI Eco Persian Green Fountain Pen Specifications\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eEdition: 2023 Release\u003c\/li\u003e\n\u003cli\u003ePen Material: Transparent resin barrel with translucent, Persian green cap and piston knob\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Internal Piston-Fill Mechanism (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.45 in. \/ 138.8mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 5.18 in. \/ 131.5mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): 6.60 in. \/ 167.5mm\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.5 in. \/ 12.8mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.36 in. \/ 9mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.74 oz. \/ 21g\u003c\/li\u003e\n\u003cli\u003ePackaged in clear case with a wrench and silicone grease.\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"1.1mm Stub","offer_id":41388145475723,"sku":"M7449500","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":41388145508491,"sku":"M7449490","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":41388145541259,"sku":"M7449480","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":41388145574027,"sku":"M7449470","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":41388145606795,"sku":"M7449460","price":36.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/products\/twsbi-eco-fountain-pen-in-persian-green-973.jpg?v=1762270946"},{"product_id":"twsbi-eco-fountain-pen-in-indigo-blue-with-bronze-trim","title":"TWSBI Eco Fountain Pen in Indigo Blue with Bronze Trim","description":"\u003cp\u003eThe TWSBI (commonly pronounced \"twiz-bee\") Eco is the answer to the common question, \"what is a good starter fountain pen?\" The piston-filling Eco provides all the enjoyment of owning a modern fountain pen at a fraction of the cost.\u003c\/p\u003e\u003cp\u003eThe transparent resin barrel gives the writer a clear view of the ink sloshing around as they write. A dependable, iridium-tipped steel nib writes smoothly in a variety of point sizes to suit your writing style. The nib keeps fresh with ink thanks to the inner cap seal.\u003c\/p\u003e\u003cp\u003eAfter writing hundreds, if not thousands, of pages, you can maintain your TWSBI Eco using the included wrench and silicone grease.\u003c\/p\u003e\u003cp\u003eTWSBI Eco Indigo Blue Fountain Pen with Bronze Trim Specifications\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eEdition: 2023 Release\u003c\/li\u003e\n\u003cli\u003ePen Material: Transparent resin barrel with Indigo Blue cap and piston knob\u003c\/li\u003e\n\u003cli\u003eNib Material: Bronze Coated Stainless Steel\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Internal Piston-Fill Mechanism (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.45 in. \/ 138.8mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 5.18 in. \/ 131.5mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): 6.60 in. \/ 167.5mm\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.5 in. \/ 12.8mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.36 in. \/ 9mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.74 oz. \/ 21g\u003c\/li\u003e\n\u003cli\u003ePackaged in clear case with a wrench and silicone grease.\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"Medium","offer_id":41547869094027,"sku":"M7449580","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":41547869126795,"sku":"M7449570","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":41547869159563,"sku":"M7449560","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":41547869192331,"sku":"M7449590","price":55.99,"currency_code":"USD","in_stock":false},{"title":"1.1mm Stub","offer_id":41547869225099,"sku":"M7449600","price":55.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/files\/twsbi-eco-fountain-pen-in-indigo-blue-with-bronze-trim-436.jpg?v=1762271525"},{"product_id":"twsbi-eco-fountain-pen-in-creme-with-rosegold-trim","title":"TWSBI Eco Fountain Pen in Créme with Rosegold Trim","description":"\u003cp\u003eThe TWSBI (commonly pronounced \"twiz-bee\") Eco is the answer to the common question, \"what is a good starter fountain pen?\" The piston-filling Eco provides all the enjoyment of owning a modern fountain pen at a fraction of the cost.\u003c\/p\u003e\u003cp\u003eThe transparent resin barrel gives the writer a clear view of the ink sloshing around as they write. A dependable, iridium-tipped steel nib writes smoothly in a variety of point sizes to suit your writing style. The nib keeps fresh with ink thanks to the inner cap seal.\u003c\/p\u003e\u003cp\u003eAfter writing hundreds, if not thousands, of pages, you can maintain your TWSBI Eco using the included wrench and silicone grease.\u003c\/p\u003e\u003cp\u003eTWSBI Eco Créme Fountain Pen with Rosegold Trim Specifications\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eEdition: 2023 Release\u003c\/li\u003e\n\u003cli\u003ePen Material: Transparent resin barrel with Créme cap and piston knob\u003c\/li\u003e\n\u003cli\u003eNib Material: Rosegold Coated Stainless Steel\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Internal Piston-Fill Mechanism (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.45 in. \/ 138.8mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 5.18 in. \/ 131.5mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): 6.60 in. \/ 167.5mm\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.5 in. \/ 12.8mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.36 in. \/ 9mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.74 oz. \/ 21g\u003c\/li\u003e\n\u003cli\u003ePackaged in clear case with a wrench and silicone grease.\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e \u003c\/p\u003e","brand":"TWSBI Pens","offers":[{"title":"Medium","offer_id":41782739697803,"sku":"M7449530","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":41782739730571,"sku":"M7449520","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":41782739763339,"sku":"M7449510","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":41782739796107,"sku":"M7449540","price":55.99,"currency_code":"USD","in_stock":false},{"title":"1.1mm Stub","offer_id":41782739828875,"sku":"M7449550","price":55.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/files\/twsbi-eco-fountain-pen-in-creme-with-rosegold-trim-413.jpg?v=1762271770"},{"product_id":"twsbi-diamond-580alr-fountain-pen-in-black","title":"TWSBI Diamond 580ALR Fountain Pen in Black","description":"\u003cp\u003eThe TWSBI (commonly pronounced \"twiz-bee\") Diamond 580 is the 21st Century interpretation of a classic writing instrument. While most of our modern communication devices lack transparency and customization, the TWSBI Diamond 580 excels with a transparent resin construction that can be disassembled using the included wrench.\u003c\/p\u003e\n\n\u003cp\u003eThe Diamond 580 represents the fusion of a traditional fountain pen with a modern industrial design. The result is an eye-catching writing instrument that is simultaneously appreciative of the past and relevant in the present. The modern writer can appreciate the stainless steel nib's smooth writing quality, the high volume ink capacity, and the ability to take good care of their pen.\u003c\/p\u003e\n\n\u003cp\u003eThe Diamond 580ALR has an aluminum grip section and piston rod to add substantial style to this fountain pen. The matte grip section and cap top ring feature concentric, ringed engravings. For this particular style, TWSBI anodized the aluminum accents in jet black for a smoky, stealthy aesthetic appeal.\u003c\/p\u003e\n\n\n\u003cp\u003eThe internal piston-filling mechanism holds about 2 ml of ink and can be completely taken apart for thorough cleaning. 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A dependable, iridium-tipped steel nib writes smoothly in a variety of point sizes to suit your writing style. 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For long writing sessions with consistent ink flow, open up the valve to allow more ink to access the feed. The stainless steel nib writes smoothly without interruption.\u003c\/p\u003e\u003cp\u003eUnlike other vacuum-filling pens, the Vac700R is meant to be completely taken apart for thorough cleaning. A special wrench and silicone grease are included to aid in the maintenance of the pen.\u003c\/p\u003e\u003cp\u003eThe “Kyanite” is a 2024 special edition that features blue-colored metal trims, clip, and stainless steel nib. Each Vac700R Iris has its own unique trim coloring.\u003c\/p\u003e\u003cp\u003eTWSBI Vac700R Iris Fountain Pen Specifications\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eEdition: 2024 Special Edition\u003c\/li\u003e\n\u003cli\u003ePen Material: Transparent Resin\u003c\/li\u003e\n\u003cli\u003eTrims and Clip: Blue metal finish\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Internal Vacuum-Fill Mechanism (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.79 in. \/ 147mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 5.28 in. \/ 134mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): Cannot be posted.\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.59 in. \/ 15mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.39 in. \/ 10mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 1.23 oz. \/ 35g\u003c\/li\u003e\n\u003cli\u003ePackaged in clear case with a wrench and silicone grease.\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"Extra Fine","offer_id":42633505833099,"sku":"M7449660","price":88.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":42633505865867,"sku":"M7449670","price":88.99,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":42633505898635,"sku":"M7449680","price":88.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":42633505931403,"sku":"M7449690","price":88.99,"currency_code":"USD","in_stock":false},{"title":"1.1mm Stub","offer_id":42633505964171,"sku":"M7449700","price":88.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/files\/twsbi-vac700r-fountain-pen-in-kyanite-special-edition-860.jpg?v=1762272427"},{"product_id":"twsbi-eco-fountain-pen-in-irish-green-with-onyx","title":"TWSBI Eco Fountain Pen in Irish Green with Onyx","description":"\u003cp\u003eThe TWSBI (commonly pronounced \"twiz-bee\") Eco is the answer to the common question, \"what is a good starter fountain pen?\" The piston-filling Eco provides all the enjoyment of owning a modern fountain pen at a fraction of the cost.\u003c\/p\u003e\u003cp\u003eThe transparent resin barrel gives the writer a clear view of the ink sloshing around as they write. A dependable, iridium-tipped steel nib writes smoothly in a variety of point sizes to suit your writing style. The nib keeps fresh with ink thanks to the inner cap seal.\u003c\/p\u003e\u003cp\u003eAfter writing hundreds, if not thousands, of pages, you can maintain your TWSBI Eco using the included wrench and silicone grease.\u003c\/p\u003e\u003cp\u003eTWSBI Eco Irish Green with Onyx Fountain Pen Specifications\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eEdition: 2024 Release\u003c\/li\u003e\n\u003cli\u003ePen Material: Transparent resin barrel with translucent, Irish Green cap and piston knob\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Internal Piston-Fill Mechanism (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.45 in. \/ 138.8mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 5.18 in. \/ 131.5mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): 6.60 in. \/ 167.5mm\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.5 in. \/ 12.8mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.36 in. \/ 9mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.74 oz. \/ 21g\u003c\/li\u003e\n\u003cli\u003ePackaged in clear case with a wrench and silicone grease.\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"Extra Fine","offer_id":42698307010699,"sku":"M7440720","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":42698306977931,"sku":"M7440730","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":42698306945163,"sku":"M7440740","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":42698307043467,"sku":"M7440750","price":55.99,"currency_code":"USD","in_stock":false},{"title":"1.1mm Stub","offer_id":42698307076235,"sku":"M7440760","price":55.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/files\/twsbi-eco-fountain-pen-in-irish-green-with-onyx-617.jpg?v=1762272585"},{"product_id":"twsbi-eco-fountain-pen-in-sky-blue","title":"TWSBI Eco Fountain Pen in Sky Blue","description":"\u003cp\u003eThe TWSBI Eco Fountain Pen in Sky Blue is a stunning and reliable choice for both beginners and seasoned fountain pen enthusiasts. Its vibrant sky blue cap and piston-filling mechanism offer a modern yet classic writing experience at an affordable price\u003c\/p\u003e\u003cp\u003eWith a transparent resin barrel, you can watch the ink flow as you write, adding a dynamic touch to every stroke. The smooth, iridium-tipped steel nib ensures effortless writing, while the inner cap seal keeps the nib fresh and ready for use. Easy to maintain, the pen comes with a wrench and silicone grease for long-lasting performance.\u003c\/p\u003e\u003cp\u003eTWSBI Eco Fountain Pen in Sky Blue\u003cbr\u003e\u003c\/p\u003e\n\n\n\u003cul\u003e\n\u003cli\u003eEdition: 2024 Limited Edition\u003c\/li\u003e\n\u003cli\u003ePen Material: Transparent and Translucent Color Resins\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eAvailable Nib Sizes: Extra Fine, Fine, Medium, Broad, and Stub 1.1\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Internal Piston-Fill Mechanism (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.45 in. \/ 138.8mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 5.18 in. \/ 131.5mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): 6.60 in. \/ 167.5mm\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.5 in. \/ 12.8mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.36 in. \/ 9mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.74 oz. \/ 21g\u003c\/li\u003e\n\u003cli\u003ePackaged in clear case with a wrench and silicone grease.\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"Extra Fine","offer_id":42837005566091,"sku":"M7440600","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":42837005533323,"sku":"M7440610","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":42837005500555,"sku":"M7440620","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":42837005467787,"sku":"M7440630","price":36.99,"currency_code":"USD","in_stock":false},{"title":"1.1mm Stub","offer_id":42837005435019,"sku":"M7440640","price":36.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/files\/twsbi-eco-fountain-pen-in-sky-blue-224.jpg?v=1762272785"},{"product_id":"twsbi-diamond-580alr-fountain-pen-in-caribbean-with-onyx","title":"TWSBI Diamond 580ALR Fountain Pen in Caribbean with Onyx","description":"\u003cp\u003eThe TWSBI (commonly pronounced \"twiz-bee\") Diamond 580 is the 21st Century interpretation of a classic writing instrument. While most of our modern communication devices lack transparency and customization, the TWSBI Diamond 580 excels with a transparent resin construction that can be disassembled using the included wrench.\u003c\/p\u003e\n\n\u003cp\u003eThe Diamond 580 represents the fusion of a traditional fountain pen with a modern industrial design. The result is an eye-catching writing instrument that is simultaneously appreciative of the past and relevant in the present. The modern writer can appreciate the stainless steel nib's smooth writing quality, the high volume ink capacity, and the ability to take good care of their pen.\u003c\/p\u003e\n\n\u003cp\u003eThe Diamond 580ALR has an aluminum grip section and piston rod to add substantial style to this fountain pen. The matte grip section and cap top ring feature concentric, ringed engravings.\u003c\/p\u003e\n\n\u003cp\u003eThe internal piston-filling mechanism holds about 2 ml of ink and can be completely taken apart for thorough cleaning. 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A dependable, iridium-tipped steel nib writes smoothly in a variety of point sizes to suit your writing style. The nib keeps fresh with ink thanks to the inner cap seal.\u003c\/p\u003e\u003cp\u003eAfter writing hundreds, if not thousands, of pages, you can maintain your TWSBI Eco using the included wrench and silicone grease.\u003c\/p\u003e\u003cp\u003eTWSBI Eco Fountain Pen in Amazonite Specifications\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eEdition: 2024 Release\u003c\/li\u003e\n\u003cli\u003ePen Material: Transparent resin barrel with unique swirled pattern Green\/White cap and piston knob\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Internal Piston-Fill Mechanism (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.45 in. \/ 138.8mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 5.18 in. \/ 131.5mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): 6.60 in. \/ 167.5mm\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.5 in. \/ 12.8mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.36 in. \/ 9mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.74 oz. \/ 21g\u003c\/li\u003e\n\u003cli\u003ePackaged in clear case with a wrench and silicone grease.\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"1.1mm Stub","offer_id":42950775996555,"sku":"M7441330","price":39.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":42950776029323,"sku":"M7441320","price":39.99,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":42950776062091,"sku":"M7441310","price":39.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":42950776094859,"sku":"M7441300","price":39.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":42950776127627,"sku":"M7441290","price":39.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/files\/twsbi-eco-fountain-pen-in-amazonite-749.jpg?v=1762272949"},{"product_id":"twsbi-eco-fountain-pen-in-espresso-with-bronze","title":"TWSBI Eco Fountain Pen in Espresso with Bronze","description":"\u003cp\u003eThe TWSBI (commonly pronounced \"twiz-bee\") Eco is the answer to the common question, \"what is a good starter fountain pen?\" The piston-filling Eco provides all the enjoyment of owning a modern fountain pen at a fraction of the cost.\u003c\/p\u003e\u003cp\u003eThe transparent resin barrel gives the writer a clear view of the ink sloshing around as they write. 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The nib keeps fresh with ink thanks to the inner cap seal.\u003c\/p\u003e\u003cp\u003eAfter writing hundreds, if not thousands, of pages, you can maintain your TWSBI Eco using the included wrench and silicone grease.\u003c\/p\u003e\u003cp\u003eTWSBI Eco Espresso with Bronze Fountain Pen Specifications\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eEdition: 2025 Release\u003c\/li\u003e\n\u003cli\u003ePen Material: Transparent resin barrel with translucent, Espresso cap and piston knob\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Internal Piston-Fill Mechanism (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.45 in. \/ 138.8mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 5.18 in. \/ 131.5mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): 6.60 in. \/ 167.5mm\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.5 in. \/ 12.8mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.36 in. \/ 9mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.74 oz. \/ 21g\u003c\/li\u003e\n\u003cli\u003ePackaged in clear case with a wrench and silicone grease.\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"1.1mm Stub","offer_id":43069571465355,"sku":"M7441180","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":43069571498123,"sku":"M7441170","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":43069571530891,"sku":"M7441160","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":43069571563659,"sku":"M7441150","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":43069571596427,"sku":"M7441140","price":55.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/files\/twsbi-eco-fountain-pen-in-espresso-with-bronze-476.jpg?v=1762273074"},{"product_id":"twsbi-eco-fountain-pen-in-slate-blue-with-onyx-trim","title":"TWSBI Eco Fountain Pen in Slate Blue with Onyx Trim","description":"\u003cp\u003eThe TWSBI (commonly pronounced \"twiz-bee\") Eco is the answer to the common question, \"what is a good starter fountain pen?\" The piston-filling Eco provides all the enjoyment of owning a modern fountain pen at a fraction of the cost.\u003c\/p\u003e\u003cp\u003eThe transparent resin barrel gives the writer a clear view of the ink sloshing around as they write. A dependable, iridium-tipped steel nib writes smoothly in a variety of point sizes to suit your writing style. The nib keeps fresh with ink thanks to the inner cap seal.\u003c\/p\u003e\u003cp\u003eAfter writing hundreds, if not thousands, of pages, you can maintain your TWSBI Eco using the included wrench and silicone grease.\u003c\/p\u003e\u003cp\u003eTWSBI Eco Slate Blue Fountain Pen with Onyx Trim Specifications\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eEdition: 2025 Release\u003c\/li\u003e\n\u003cli\u003ePen Material: Transparent resin barrel with Slate Blue cap and piston knob\u003c\/li\u003e\n\u003cli\u003eNib Material: Onyx Coated Stainless Steel\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Internal Piston-Fill Mechanism (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.45 in. \/ 138.8mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 5.18 in. \/ 131.5mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): 6.60 in. \/ 167.5mm\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.5 in. \/ 12.8mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.36 in. \/ 9mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.74 oz. \/ 21g\u003c\/li\u003e\n\u003cli\u003ePackaged in clear case with a wrench and silicone grease.\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"1.1mm Stub","offer_id":43157175173259,"sku":"M7441130","price":55.99,"currency_code":"USD","in_stock":true},{"title":"Broad","offer_id":43157175206027,"sku":"M7441120","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":43157175238795,"sku":"M7441110","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":43157175271563,"sku":"M7441100","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":43157175304331,"sku":"M7441090","price":55.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/files\/twsbi-eco-fountain-pen-in-slate-blue-with-onyx-trim-673.jpg?v=1759269884"},{"product_id":"twsbi-eco-fountain-pen-in-serpentine-with-bronze-trim","title":"TWSBI Eco Fountain Pen in Serpentine with Bronze Trim","description":"\u003cp\u003eThe TWSBI (commonly pronounced \"twiz-bee\") Eco is the answer to the common question, \"what is a good starter fountain pen?\" The piston-filling Eco provides all the enjoyment of owning a modern fountain pen at a fraction of the cost.\u003c\/p\u003e\u003cp\u003eThe transparent resin barrel gives the writer a clear view of the ink sloshing around as they write. A dependable, iridium-tipped steel nib writes smoothly in a variety of point sizes to suit your writing style. The nib keeps fresh with ink thanks to the inner cap seal.\u003c\/p\u003e\u003cp\u003eAfter writing hundreds, if not thousands, of pages, you can maintain your TWSBI Eco using the included wrench and silicone grease.\u003c\/p\u003e\u003cp\u003eTWSBI Eco Serpentine Fountain Pen with Bronze Trim Specifications\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eEdition: 2025 Release\u003c\/li\u003e\n\u003cli\u003ePen Material: Transparent resin barrel with Serpentine cap and piston knob\u003c\/li\u003e\n\u003cli\u003eNib Material: Bronze Coated Stainless Steel\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Internal Piston-Fill Mechanism (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.45 in. \/ 138.8mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 5.18 in. \/ 131.5mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): 6.60 in. \/ 167.5mm\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.5 in. \/ 12.8mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.36 in. \/ 9mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.74 oz. \/ 21g\u003c\/li\u003e\n\u003cli\u003ePackaged in clear case with a wrench and silicone grease.\u003c\/li\u003e\n\u003cli\u003eEvery pen will be unique in pattern variation, as these patterns are completely random during the injection process and cannot be chosen\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"Medium","offer_id":43580307832971,"sku":"M7442080","price":58.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":43580307865739,"sku":"M7442070","price":58.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":43580307898507,"sku":"M7442060","price":58.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":43580307931275,"sku":"M7442090","price":58.99,"currency_code":"USD","in_stock":false},{"title":"1.1mm Stub","offer_id":43580307964043,"sku":"M7442100","price":58.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/files\/twsbi-eco-fountain-pen-in-serpentine-with-bronze-trim-642.jpg?v=1759270413"},{"product_id":"twsbi-diamond-580alr-fountain-pen-in-affogato-with-onyx","title":"TWSBI Diamond 580ALR Fountain Pen in Affogato with Onyx","description":"\u003cp\u003eThe TWSBI (commonly pronounced \"twiz-bee\") Diamond 580 is the 21st Century interpretation of a classic writing instrument. While most of our modern communication devices lack transparency and customization, the TWSBI Diamond 580 excels with a transparent resin construction that can be disassembled using the included wrench.\u003c\/p\u003e\u003cp\u003eThe Diamond 580 represents the fusion of a traditional fountain pen with a modern industrial design. The result is an eye-catching writing instrument that is simultaneously appreciative of the past and relevant in the present. The modern writer can appreciate the stainless steel nib's smooth writing quality, the high volume ink capacity, and the ability to take good care of their pen.\u003c\/p\u003e\u003cp\u003eThe Diamond 580ALR has an aluminum grip section and piston rod to add substantial style to this fountain pen. The matte grip section and cap top ring feature concentric, ringed engravings.\u003c\/p\u003e\u003cp\u003eThe internal piston-filling mechanism holds about 2 ml of ink and can be completely taken apart for thorough cleaning. Instructions and silicone grease are also included to aid in the maintenance of the pen.\u003c\/p\u003e\u003cp\u003eTWSBI Diamond 580ALR Fountain Pen in Affogato with Onyx Specifications\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eEdition: Limited Edition\u003c\/li\u003e\n\u003cli\u003ePen Material: Transparent Resin and Aluminum\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eNib Color: Black\u003c\/li\u003e\n\u003cli\u003eTrim: Affogato w\/ Onyx\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Internal Piston-Fill Mechanism (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.59 in. \/ 142mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 5.12 in. \/ 130mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): Pen cap cannot be posted.\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.52 in. \/ 13.3mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.4 in. \/ 10mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 1 oz. \/ 28g\u003c\/li\u003e\n\u003cli\u003ePackaged in clear case with a wrench and silicone grease.\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"Medium","offer_id":43715694493835,"sku":"M7441360","price":88.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":43715694526603,"sku":"M7441350","price":88.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":43715694559371,"sku":"M7441340","price":88.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":43715694592139,"sku":"M7441370","price":88.99,"currency_code":"USD","in_stock":false},{"title":"1.1mm Stub","offer_id":43715694624907,"sku":"M7441380","price":88.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/files\/twsbi-diamond-580alr-fountain-pen-in-affogato-with-onyx-528.jpg?v=1759270796"},{"product_id":"twsbi-econ-fountain-pen-in-carrara-with-onyx","title":"Twsbi ECO Fountain Pen in Carrara with Onyx","description":"\u003cp\u003eThe TWSBI ECO Fountain Pen in Carrara with Onyx delivers exceptional value and performance with TWSBI’s signature piston filling system for smooth and reliable ink flow. Its crystal-clear acrylic barrel allows you to monitor your ink level at a glance, while the marbled Carrara resin cap and finial create a unique and striking pattern, making every pen one of a kind. The pen is accented with elegant onyx black PVD trim and a matching stainless steel nib.\u003c\/p\u003e\n\u003cp\u003eThe Carrara color is achieved through an advanced injection molding process, giving each pen a one-of-a-kind appearance. Special pattern requests cannot be accommodated, as each pen is unique.\u003c\/p\u003e\n\u003cp\u003eThe pen cap includes an inner cap that ensures a secure seal to prevent ink from drying when stored. TWSBI ECO pens are designed to be fully disassemblable, allowing you to experience traditional fountain pen care and maintenance. The pen comes with a wrench and silicone grease for long-term maintenance, though these accessories are not intended for immediate use. Extra care should be taken when handling the nib and feed, as the feed is delicate.\u003c\/p\u003e\n\u003cp\u003eThis pen is available in a variety of nib sizes to suit your writing style, including Extra Fine, Fine, Medium, Broad, and Stub 1.1 mm\u003c\/p\u003e\n\u003cp\u003eTWSBI Econ Fountain Pen in Carrara with Onyx Specifications\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBody Material: Transparent acrylic\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eAvailable Nib Sizes: Extra Fine, Fine, Medium, Broad, and Stub 1.1\u003c\/li\u003e\n\u003cli\u003eCap Material: Marbled Carrara resin with inner cap for ink seal\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Piston-filling system (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.45 in. \/ 138.8mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 5.18 in. \/ 131.5mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): 6.60 in. \/ 167.5mm\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.5 in. \/ 12.8mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.36 in. \/ 9mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.74 oz. \/ 21g\u003c\/li\u003e\n\u003cli\u003eAccessories include: a wrench and silicone grease for long term maintenance\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"Broad","offer_id":44278934601867,"sku":"M7442760","price":58.99,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":44278934634635,"sku":"M7442750","price":58.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":44278934667403,"sku":"M7442740","price":58.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":44278934700171,"sku":"M7442730","price":58.99,"currency_code":"USD","in_stock":false},{"title":"1.1mm Stub","offer_id":44278934732939,"sku":"M7442700","price":58.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/files\/twsbi-eco-fountain-pen-in-carrara-with-onyx-715.jpg?v=1762273864"},{"product_id":"twsbi-eco-fountain-pen-in-plum-with-onyx","title":"TWSBI Eco Fountain Pen in Plum with Onyx","description":"\u003cp\u003eThe TWSBI ECO Fountain Pen in Plum with Onyx offers exceptional value and reliable performance, featuring TWSBI’s signature piston filling system for smooth, consistent ink flow. Its crystal-clear acrylic barrel lets you easily monitor your ink level, while the deep plum resin cap and finial add a rich, elegant touch. Each pen showcases subtle variations in tone, making every piece uniquely yours. Complemented by sleek onyx black PVD trim and a matching stainless steel nib, this pen is as refined as it is functional.\u003c\/p\u003e\n\u003cp\u003eThe Plum finish is created through a meticulous resin-casting process, resulting in slight variations in color and pattern that ensure no two pens are exactly alike. Special pattern requests cannot be accommodated due to this unique production process.\u003c\/p\u003e\n\u003cp\u003eThe cap features an inner sealing mechanism that prevents ink from drying out between uses. Like all TWSBI ECO pens, the Plum with Onyx model is fully disassemblable for traditional fountain pen maintenance. A wrench and silicone grease are included for long-term care, though these accessories are not required for immediate use. Handle the nib and feed with care, as the feed is delicate.\u003c\/p\u003e\n\u003cp\u003eAvailable nib sizes include Extra Fine, Fine, Medium, Broad, and Stub 1.1 mm to suit your preferred writing style.\u003c\/p\u003e\n\u003cp\u003eTWSBI Eco Fountain Pen in Plum with Onyx Specifications\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePen Material: Transparent acrylic barrel\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eAvailable Nib Sizes: Extra Fine, Fine, Medium, Broad, and Stub 1.1\u003c\/li\u003e\n\u003cli\u003eCap Material: Plum resin with inner cap for ink seal\u003c\/li\u003e\n\u003cli\u003eTrim: Onyx black PVD accents\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Piston-filling system (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.46 in. \/ 138.8 mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 5.18 in. \/ 131.5 mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): 6.59 in. \/ 167.5 mm\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.50 in. \/ 12.8 mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.36 in. \/ 9 mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.74 oz. \/ 21 g\u003c\/li\u003e\n\u003cli\u003ePostable: Yes (cap posts securely on barrel)\u003c\/li\u003e\n\u003cli\u003eAccessories include: Wrench and silicone grease for long-term maintenance\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"1.1mm Stub","offer_id":44419430088843,"sku":"M7441480","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":44419430121611,"sku":"M7441470","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":44419430154379,"sku":"M7441460","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":44419430187147,"sku":"M7441450","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":44419430219915,"sku":"M7441440","price":55.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/files\/twsbi-eco-fountain-pen-in-plum-with-onyx-761.jpg?v=1762956630"},{"product_id":"twsbi-eco-fountain-pen-in-cosmo-with-onyx","title":"TWSBI Eco Fountain Pen in Cosmo with Onyx","description":"\u003cp\u003eThe TWSBI Eco Fountain Pen in Cosmo with Onyx captures the mystery and beauty of a starry night sky. Its shimmering Cosmo resin glows with subtle hints of deep blues, purples, and silvery flecks, creating a cosmic effect that’s different with every pen. The translucent acrylic barrel lets your ink color shine through, while the onyx black trim adds a bold, modern contrast. This pen is as much a statement piece as it is a reliable writing instrument.\u003c\/p\u003e\n\u003cp\u003eCrafted from high-quality resin and acrylic, the Cosmo finish is the result of a careful casting process, giving each pen unique variations in color and pattern. No two pens are exactly alike, making your Eco truly one-of-a-kind. The stainless steel nib glides smoothly across the page, while the piston-filling system ensures consistent ink flow for an effortless writing experience.\u003c\/p\u003e\n\u003cp\u003eThe cap features an inner sealing mechanism that prevents ink from drying out, keeping your pen ready whenever inspiration strikes. Like all TWSBI Eco, the Cosmo with Onyx model is fully disassemblable for cleaning and maintenance. A wrench and silicone grease are included for long-term care, though these accessories are not required for immediate use. Handle the nib and feed with care, as the feed is delicate but finely tuned for optimal performance.\u003c\/p\u003e\n\u003cp\u003eThe TWSBI Eco in Cosmo with Onyx is more than just a pen, it’s a little piece of the universe in your hand, perfect for journaling, note-taking, or adding a touch of cosmic elegance to your everyday writing.\u003c\/p\u003e\n\u003cp\u003eAvailable nib sizes include Extra Fine, Fine, Medium, Broad, and Stub 1.1 mm to suit your preferred writing style.\u003c\/p\u003e\n\u003cp\u003eTWSBI Eco Fountain Pen in Cosmo with Onyx Specifications\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePen Material: Transparent acrylic barrel\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eAvailable Nib Sizes: Extra Fine, Fine, Medium, Broad, and Stub 1.1\u003c\/li\u003e\n\u003cli\u003eCap Material: Cosmo resin with inner cap for ink seal\u003c\/li\u003e\n\u003cli\u003eTrim: Onyx black PVD accents\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Piston-filling system (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.46 in. \/ 138.8 mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 5.18 in. \/ 131.5 mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): 6.59 in. \/ 167.5 mm\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.50 in. \/ 12.8 mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.36 in. \/ 9 mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.74 oz. \/ 21 g\u003c\/li\u003e\n\u003cli\u003ePostable: Yes (cap posts securely on barrel)\u003c\/li\u003e\n\u003cli\u003eAccessories include: Wrench and silicone grease for long-term maintenance\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"Medium","offer_id":44725619032203,"sku":"M7445520","price":58.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":44725619064971,"sku":"M7445510","price":58.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":44725619097739,"sku":"M7445500","price":58.99,"currency_code":"USD","in_stock":false},{"title":"1.1mm Stub","offer_id":44725619130507,"sku":"M7445540","price":58.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":44725619163275,"sku":"M7445530","price":58.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/files\/twsbi-eco-fountain-pen-in-cosmo-with-onyx-274.jpg?v=1765375249"},{"product_id":"twsbi-fountain-pen-in-obsidian-limited-edition","title":"TWSBI Fountain Pen in Obsidian - Limited Edition","description":"\u003cp\u003eThe TWSBI Obsidian fountain pen is a masterpiece in your hand. Its dark grey and black swirled acrylic resin body catches the light like molten stone, while the rose gold-plated trim adds a touch of understated luxury. The rose gold-plated stainless steel nib sized like the TWSBI 580 glides effortlessly across paper, turning every word into a statement.\u003c\/p\u003e \n\n\u003cp\u003eThis pen isn’t just beautiful, it’s built for performance. Featuring TWSBI’s signature piston ink-filling mechanism and a clear ink window, you can watch your ink dance as it flows, keeping you in sync with your writing. Every part is fully detachable, inviting you to explore the mechanics and craftsmanship behind every stroke.\u003c\/p\u003e \n\n\u003cp\u003eAvailable nib sizes include Extra Fine, Fine, Medium, and Broad to suit your unique writing style.\u003c\/p\u003e \n\n\u003cp\u003eThough the cap can technically be posted on the back, TWSBI advises against it to protect the pristine barrel. This limited edition beauty comes with a wrench and silicone grease for long-term care, though these treasures are for future use. Handle the nib and feed with care, they are delicate but worth it for the perfect writing experience.\u003c\/p\u003e \n\n\u003cp\u003eExperience the traditional artistry of fountain pens with the TWSBI Obsidian, where design, function, and user engagement meet.\u003c\/p\u003e\n\n\u003cp\u003eTWSBI Fountain Pen in Obsidian Specifications\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eEdition: Limited Edition\u003c\/li\u003e \n\u003cli\u003eBody material: Dark grey\/black swirled acrylic resin \u003c\/li\u003e \n\u003cli\u003eTrim: Rose gold-plated trim.\u003c\/li\u003e \n\u003cli\u003eNib material: Rose gold-plated stainless steel nib\u003c\/li\u003e \n\u003cli\u003eNib size options: Available in Extra Fine, Fine, Medium, Broad \u003c\/li\u003e \n\u003cli\u003eFilling Mechanism: Piston-filling system (Bottled Ink Only)\u003c\/li\u003e \n\u003cli\u003eCap mechanism: Screw-on cap \u003c\/li\u003e \n\u003cli\u003eAccessories include: Wrench and silicone grease for long-term maintenance\u003c\/li\u003e \n\u003cli\u003eMade in Taiwan\u003c\/li\u003e \n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"Broad","offer_id":45015907827851,"sku":"M7445280","price":120.0,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":45015907860619,"sku":"M7445250","price":120.0,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":45015907893387,"sku":"M7445270","price":120.0,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":45015907926155,"sku":"M7445260","price":120.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/files\/twsbi-fountain-pen-in-obsidian-limited-edition-947.jpg?v=1767711258"},{"product_id":"twsbi-eco-fountain-pen-in-black-marble-with-bronze","title":"TWSBI Eco Fountain Pen in Black Marble with Bronze","description":"\u003cp\u003eDiscover a refined blend of visual depth, everyday practicality, and trusted craftsmanship with the TWSBI Eco Fountain Pen in Black Marble with Bronze. This special edition Eco features a striking marbled black and grey resin body, enhanced by warm bronze accents that add a subtle yet sophisticated contrast.\u003c\/p\u003e\n\n\u003cp\u003eThe transparent barrel showcases TWSBI’s signature piston filling system, allowing you to easily monitor ink levels while enjoying the visual appeal of ink in motion. With its generous ink capacity and cartridge free design, the Eco is built for long writing sessions and consistent performance. The bold faceted cap gives the pen a modern and distinctive profile, while the polished stainless steel nib engraved with the TWSBI logo delivers a smooth and reliable writing experience.\u003c\/p\u003e\n\n\u003cp\u003eAvailable in five nib sizes Extra Fine, Fine, Medium, Broad, and Stub 1.1, the TWSBI Eco adapts effortlessly to a wide range of writing styles, from precise everyday notes to expressive lettering. Designed to suit both beginners and experienced fountain pen users, it offers exceptional value without compromising on quality or design.\u003c\/p\u003e\n\n\u003cp\u003eWhether you are journaling, sketching, or taking notes, the TWSBI Eco Black Marble with Bronze combines dependable performance with artistic flair, making it a standout addition to any fountain pen collection.\u003c\/p\u003e\n\n\u003cp\u003eTWSBI Eco Fountain Pen in Black Marble with Bronze Specifications\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePen Material: Transparent black and grey marbled resin barrel\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless steel\u003c\/li\u003e\n\u003cli\u003eAvailable Nib Sizes: Extra Fine, Fine, Medium, Broad, and Stub 1.1\u003c\/li\u003e\n\u003cli\u003eCap Material: Black and grey marbled resin with inner cap for ink seal\u003c\/li\u003e\n\u003cli\u003eTrim: Bronze accents\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Piston filling system (bottled ink only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.20 in. \/ 132 mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 4.96 in. \/ 126 mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): 6.61 in. \/ 168 mm\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.51 in. \/ 13 mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.74 oz. \/ 21 g\u003c\/li\u003e\n\u003cli\u003ePostable: Yes (cap posts securely on barrel)\u003c\/li\u003e\n\u003cli\u003eAccessories Included: Wrench and silicone grease for maintenance\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"Broad","offer_id":45163751342219,"sku":"M7441270","price":58.99,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":45163751374987,"sku":"M7441260","price":58.99,"currency_code":"USD","in_stock":false},{"title":"1.1mm Stub","offer_id":45163751407755,"sku":"M7441280","price":58.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":45163751440523,"sku":"M7441250","price":58.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":45163751473291,"sku":"M7441240","price":58.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/files\/twsbi-eco-fountain-pen-in-black-marble-with-bronze-236.jpg?v=1770242184"},{"product_id":"twsbi-eco-fountain-pen-in-bahama-yellow","title":"TWSBI Eco Fountain Pen in Bahama Yellow","description":"\u003cp\u003eThe TWSBI Eco Fountain Pen in Bahama Yellow delivers the perfect blend of affordability, performance, and vibrant style. Designed for both beginners and experienced fountain pen enthusiasts, the Eco series remains one of the most economical piston-fill pens available, now presented in a refreshing Bahama Yellow finish.\u003c\/p\u003e\n\u003cp\u003eThe bold Bahama Yellow accents immediately stand out. Featured on the faceted cap and piston knob, the bright color adds a lively, modern character to the pen’s overall design. The transparent resin barrel offers a full view of your ink level and the internal piston mechanism. This demonstrator-style design not only highlights your ink color of choice but also creates a dynamic and visually satisfying writing experience.\u003c\/p\u003e\n\u003cp\u003eThe faceted cap adds structure and a confident profile, while the TWSBI logo elegantly crowns the top of the cap for a refined finishing touch. Equipped with a polished stainless steel nib engraved with the TWSBI logo, the Eco provides a smooth and consistent writing experience. The nib glides effortlessly across the page, making everyday writing enjoyable.\u003c\/p\u003e\n\u003cp\u003eAvailable in a variety of nib sizes including extra fine, fine, medium, broad, and 1.1mm Stub, the Eco accommodates a wide range of handwriting styles, whether you’re journaling, sketching, note-taking, or writing professionally.\u003c\/p\u003e\n\u003cp\u003eTWSBI Eco Fountain Pen in Bahama Yellow Specifications\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePen Material: Transparent and Translucent Color Resins\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eAvailable Nib Sizes: Extra Fine, Fine, Medium, Broad, and Stub 1.1\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Internal Piston-Fill Mechanism (Bottled Ink Only)\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.20 in. \/ 132 mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 4.96 in. \/ 126 mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): 6.61 in. \/ 168 mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter,: 0.51 in. \/ 13 mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.74 oz. \/ 21 g\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"1.1mm Stub","offer_id":46214367215755,"sku":"M2533530","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":46214367248523,"sku":"M2533520","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":46214367281291,"sku":"M2533510","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":46214367314059,"sku":"M2533500","price":36.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":46214367346827,"sku":"M2533490","price":36.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/files\/0eda9f2c-f939-4511-9458-8e8a7cfc8749.jpg?v=1774263408"},{"product_id":"twsbi-eco-fountain-pen-in-rootbeer-with-bronze-trim","title":"TWSBI Eco Fountain Pen in Root Beer with Bronze Trim","description":"\u003cp\u003eDiscover a warm, inviting take on a modern classic with the TWSBI Eco Fountain Pen in Root Beer with Bronze. This special edition features a rich, translucent amber-brown resin body reminiscent of deep root beer tones, beautifully complemented by elegant bronze accents that add a vintage-inspired sophistication.\u003c\/p\u003e \n\n\u003cp\u003eThe transparent barrel showcases TWSBI’s signature piston filling system, allowing you to easily monitor ink levels while enjoying the visual depth of ink as it moves through the pen. With its generous ink capacity and cartridge-free design, the Eco is built for extended writing sessions, making it a reliable companion for everyday notes, journaling, and creative writing. The faceted cap adds a clean, modern silhouette, while the polished stainless steel nib engraved with the TWSBI logo ensures a consistently smooth and controlled writing experience.\u003c\/p\u003e \n\n\u003cp\u003eAvailable in five nib sizes including Extra Fine, Fine, Medium, Broad, and Stub 1.1mm, the TWSBI Eco adapts effortlessly to a wide range of writing styles, from crisp, precise lines to bold expressive strokes. It’s an excellent choice for both newcomers to fountain pens and seasoned enthusiasts seeking dependable performance paired with standout design.\u003c\/p\u003e \n\n\u003cp\u003eWhether you’re journaling, sketching, or taking everyday notes, the TWSBI Eco Root Beer with Bronze blends warm aesthetics with trusted functionality, making it a distinctive and practical addition to any fountain pen collection.\u003c\/p\u003e \n\n\u003cp\u003eTWSBI Eco Fountain Pen in Root Beer with Bronze Specifications\u003c\/p\u003e \n\u003cul\u003e \n\u003cli\u003ePen Material: Transparent root beer brown resin barrel\u003c\/li\u003e \n\u003cli\u003eNib Material: Stainless steel\u003c\/li\u003e \n\u003cli\u003eAvailable Nib Sizes: Extra Fine, Fine, Medium, Broad, and Stub 1.1\u003c\/li\u003e \n\u003cli\u003eCap Material: Root beer brown transparent resin with inner cap for ink seal\u003c\/li\u003e \n\u003cli\u003eTrim: Bronze accents\u003c\/li\u003e\n\u003cli\u003eFilling Mechanism: Piston filling system (bottled ink only)\u003c\/li\u003e \n\u003cli\u003ePen Length, Closed: 5.20 in. \/ 132 mm\u003c\/li\u003e \n\u003cli\u003ePen Length, Open (Cap Off): 4.96 in. \/ 126 mm\u003c\/li\u003e \n\u003cli\u003ePen Length, Open (Cap Posted): 6.61 in. \/ 168 mm\u003c\/li\u003e \n\u003cli\u003ePen Max Diameter, Barrel: 0.51 in. \/ 13 mm\u003c\/li\u003e \n\u003cli\u003eTotal Weight: 0.74 oz. \/ 21 g\u003c\/li\u003e \n\u003cli\u003ePostable: Yes (cap posts securely on barrel)\u003c\/li\u003e \n\u003cli\u003eAccessories Included: Wrench and silicone grease for maintenance\u003c\/li\u003e \n\u003cli\u003eMade in Taiwan\u003c\/li\u003e \n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"1.1mm Stub","offer_id":46822983532683,"sku":"M7448770","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":46822983565451,"sku":"M7448760","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":46822983598219,"sku":"M7448750","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":46822983630987,"sku":"M7448740","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":46822983663755,"sku":"M7448730","price":55.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/files\/2f43ddfc-af72-4762-928f-fcee35cc5406.jpg?v=1777316362"},{"product_id":"twsbi-eco-fountain-pen-in-fluorite-purple-with-bronze-trim","title":"TWSBI Eco Fountain Pen in Fluorite Purple with Bronze Trim","description":"\u003cp\u003eThe TWSBI Eco Fluorite Purple with Bronze Fountain Pen combines striking design with the reliable performance that has made the TWSBI Eco series a favorite among fountain pen enthusiasts. Featuring a clear demonstrator barrel, elegant bronze-colored trim, and beautiful marbled Fluorite Purple acrylic accents on the cap and piston knob, this fountain pen offers a sophisticated and modern appearance.\u003c\/p\u003e\n\u003cp\u003eDesigned with TWSBI’s integrated piston filling system, the Eco provides a generous ink capacity for extended writing sessions, while the transparent body allows you to easily monitor ink levels. Whether used for journaling, note-taking, sketching, or everyday writing, the TWSBI Eco delivers a smooth, comfortable, and dependable writing experience.\u003c\/p\u003e\n\u003cp\u003eThe Fluorite Purple with Bronze edition is perfect for both new fountain pen users and experienced collectors looking for a fountain pen that balances style, functionality, and value.\u003c\/p\u003e\n\u003cp\u003eAvailable in Extra Fine, Fine, Medium, Broad, and Stub 1.1mm nib sizes.\u003c\/p\u003e\n\u003cp\u003eTWSBI Eco Fountain Pen in Fluorite Purple with Bronze Trim Specifications\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBody Material: Resin with transparent demonstrator barrel\u003c\/li\u003e\n\u003cli\u003eTrim: Bronze accents\u003c\/li\u003e\n\u003cli\u003eClip: Bronze-colored metal clip\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless Steel\u003c\/li\u003e\n\u003cli\u003eNib Sizes: Extra Fine, Fine, Medium, Broad, Stub 1.1mm\u003c\/li\u003e\n\u003cli\u003eCap Type: Threaded cap with inner seal cap\u003c\/li\u003e\n\u003cli\u003ePostable: Yes\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.20 in. \/ 132 mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 4.96 in. \/ 126 mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): 6.61 in. \/ 168 mm\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.51 in. \/ 13 mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.74 oz. \/ 21 g\u003c\/li\u003e\n\u003cli\u003eFilling System: Integrated piston filling mechanism\u003c\/li\u003e\n\u003cli\u003eAccessories Included: Wrench and silicone grease for maintenance\u003c\/li\u003e\n\u003cli\u003eMade in Taiwan\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"1.1mm Stub","offer_id":47032113397899,"sku":"M7445790","price":58.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":47032113430667,"sku":"M7445780","price":58.99,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":47032113463435,"sku":"M7445770","price":58.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":47032113496203,"sku":"M7445760","price":58.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":47032113528971,"sku":"M7445750","price":58.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/files\/e3272363-8d22-4ac3-8c30-618513c1a63a.jpg?v=1779391814"},{"product_id":"twsbi-eco-fountain-pen-in-horse-year-limited-edition","title":"TWSBI Eco Fountain Pen in Horse Year - Limited Edition","description":"\u003cp\u003eThe TWSBI Eco Fountain Pen in Horse Year - Limited Edition celebrates the spirit of the Horse with a distinctive design inspired by one of the zodiac's most admired symbols of strength, freedom, and determination. Combining meaningful artwork with the dependable performance of the popular TWSBI Eco, this special edition is perfect for collectors, fountain pen enthusiasts, and those born in the Year of the Horse.\u003c\/p\u003e\n\n\u003cp\u003eFeaturing TWSBI's piston-filling mechanism, the Eco draws ink directly from a bottle and offers a generous ink capacity for everyday writing. The transparent demonstrator barrel showcases the ink and internal mechanism, while the faceted cap and signature TWSBI logo add a distinctive finishing touch.\u003c\/p\u003e\n\n\u003cp\u003eFitted with a smooth stainless steel nib, the TWSBI Eco is available in Extra Fine, Fine, Medium, Broad, and 1.1mm Stub nib sizes to suit a variety of writing styles. Like other TWSBI fountain pens, it can be fully disassembled for thorough cleaning and maintenance, with the necessary tools and instructions included.\u003c\/p\u003e\n\n\u003cp\u003eBlending practicality, generous ink capacity, and a unique Horse Year design, this limited edition fountain pen is a wonderful addition to any writing collection.\u003c\/p\u003e\n\n\u003cp\u003eTWSBI Eco Fountain Pen in Horse Year - Limited Edition Specifications\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eEdition: Limited Edition.\u003c\/li\u003e\n\u003cli\u003eBody Material: Transparent demonstrator resin.\u003c\/li\u003e\n\u003cli\u003eCap: Faceted screw-cap design with TWSBI logo finial.\u003c\/li\u003e\n\u003cli\u003eTrim: Silver-tone accents (varies slightly by edition).\u003c\/li\u003e\n\u003cli\u003eNib Material: Stainless steel.\u003c\/li\u003e\n\u003cli\u003eNib Sizes Available: Extra Fine (EF), Fine (F), Medium (M), Broad (B), 1.1mm Stub.\u003c\/li\u003e\n\u003cli\u003ePen Length, Closed: 5.45 in. \/ 138.8mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Off): 5.18 in. \/ 131.5mm\u003c\/li\u003e\n\u003cli\u003ePen Length, Open (Cap Posted): 6.60 in. \/ 167.5mm\u003c\/li\u003e\n\u003cli\u003ePen Max Diameter, Barrel: 0.5 in. \/ 12.8mm\u003c\/li\u003e\n\u003cli\u003ePen Diameter, Grip: 0.36 in. \/ 9mm\u003c\/li\u003e\n\u003cli\u003eTotal Weight: 0.74 oz. \/ 21g\u003c\/li\u003e\n\u003cli\u003ePackaged in clear case with a wrench and silicone grease.\u003c\/li\u003e\n\u003cli\u003eFilling System: Piston-filling mechanism (bottled ink only).\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TWSBI Pens","offers":[{"title":"1.1mm Stub","offer_id":47862919200907,"sku":"M7444890","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Broad","offer_id":47862919233675,"sku":"M7444880","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Medium","offer_id":47862919266443,"sku":"M7444870","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Fine","offer_id":47862919299211,"sku":"M7444860","price":55.99,"currency_code":"USD","in_stock":false},{"title":"Extra Fine","offer_id":47862919331979,"sku":"M7444850","price":55.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1693\/8459\/files\/e9dfa879-94fc-45b6-ba99-67ff4ac3f783.jpg?v=1783092824"}],"url":"https:\/\/goldspot.mom\/collections\/twsbi-piston-fill-fountain-pens.oembed?page=2","provider":"Goldspot Pens","version":"1.0","type":"link"}