{"product_id":"twsbi-eco-fountain-pen-in-transparent-yellow","title":"TWSBI Eco Fountain Pen in Transparent Yellow","description":"\u003c!--tab:Description--\u003e\n\u003cp\u003eThe \u003cstrong\u003eTWSBI Eco Fountain Pen in Transparent Yellow\u003c\/strong\u003e combines a cheerful, eye-catching finish with genuinely practical design. The semi-transparent yellow resin body doubles as a demonstrator, giving full visibility of the ink level and the piston mechanism at work, so the pen is as engaging to look at as it is to write with.\u003c\/p\u003e\n\u003cp\u003eA polished stainless steel nib — available in Extra Fine, Fine, Medium, Broad, and a 1.1 mm Stub — delivers smooth, consistent ink flow suited to everyday writing, journaling, note-taking, and creative scripts alike. The twist-action piston fill draws ink directly from a bottle and holds a generous 1.7–1.8 ml, supporting long writing sessions without frequent refills. A screw-on cap seals securely to keep ink from drying out and can be posted on the back of the pen for extra length and reach.\u003c\/p\u003e\n\u003cp\u003eAt roughly 21 g and with a gently tapered grip section, the Eco stays comfortable through extended writing. It's also fully disassemblable, so cleaning and long-term maintenance are straightforward — a design built to be used, taken apart, and reassembled for years of reliable service.\u003c\/p\u003e\n\n\u003ch2\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eSemi-transparent yellow resin body — demonstrator style shows ink level and piston mechanism.\u003c\/li\u003e\n  \u003cli\u003ePolished stainless steel nib, available in EF, F, M, B, and 1.1 mm Stub.\u003c\/li\u003e\n  \u003cli\u003eTwist-action piston fill draws directly from bottled ink; ~1.7–1.8 ml capacity.\u003c\/li\u003e\n  \u003cli\u003eScrew-on cap seals securely and can be posted for added length.\u003c\/li\u003e\n  \u003cli\u003eChrome trim and spring clip for refined detailing.\u003c\/li\u003e\n  \u003cli\u003eLightweight (~21 g) with a tapered grip section for comfortable long writing sessions.\u003c\/li\u003e\n  \u003cli\u003eFully disassemblable for easy cleaning and long-term maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\n\u003c!--tab:Technical Specifications--\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTWSBI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEco Fountain Pen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColour\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTransparent Yellow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBody Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSemi-transparent resin\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTrim\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eChrome, spring clip\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStyle\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDemonstrator\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNib Material\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePolished Stainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNib Sizes Available\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eEF, F, M, B, 1.1 mm Stub\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFilling System\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTwist-action piston fill\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInk Capacity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eApprox. 1.7–1.8 ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLength (Closed)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~139 mm (5.45 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLength (Uncapped)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~131 mm (5.18 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLength (Posted)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~168 mm (6.6 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDiameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~12.8 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e~21 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003c!--tab:FAQs--\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cbutton class=\"faq-question\"\u003e\u003cspan\u003eWhich nib size should I choose?\u003c\/span\u003e\n\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M7 10l5 5 5-5\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/button\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cp\u003eExtra Fine and Fine suit small handwriting and dense notes, Medium works well for everyday writing, Broad gives bold, expressive lines, and the 1.1 mm Stub adds line variation for a calligraphic feel.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"faq-item\"\u003e\n\u003cbutton class=\"faq-question\"\u003e\u003cspan\u003eHow does the piston filling system work?\u003c\/span\u003e\n\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M7 10l5 5 5-5\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/button\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cp\u003eTwist the knob at the end of the barrel to lower the piston, dip the nib into a bottle of ink, then twist the other way to draw ink up into the pen — no cartridge or converter needed.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"faq-item\"\u003e\n\u003cbutton class=\"faq-question\"\u003e\u003cspan\u003eCan I post the cap on this pen?\u003c\/span\u003e\n\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M7 10l5 5 5-5\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/button\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cp\u003eYes. The screw-on cap can be posted securely on the back of the barrel, adding extra length for those who prefer a longer pen while writing.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"faq-item\"\u003e\n\u003cbutton class=\"faq-question\"\u003e\u003cspan\u003eIs this pen easy to maintain?\u003c\/span\u003e\n\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M7 10l5 5 5-5\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/button\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cp\u003eYes. The Eco is fully disassemblable, so the nib unit, barrel, and piston can be separated for cleaning, making long-term maintenance straightforward.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"faq-item\"\u003e\n\u003cbutton class=\"faq-question\"\u003e\u003cspan\u003eWho is the TWSBI Eco best suited for?\u003c\/span\u003e\n\u003csvg width=\"18\" height=\"18\" viewbox=\"0 0 24 24\"\u003e\u003cpath d=\"M7 10l5 5 5-5\" fill=\"none\" stroke=\"currentColor\" stroke-width=\"2\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\u003c\/button\u003e\n\u003cdiv class=\"faq-answer\"\u003e\u003cp\u003eIts combination of affordability, generous ink capacity, and multiple nib sizes makes it a popular pick for students, professionals, and fountain pen enthusiasts alike, whether for daily writing, journaling, or creative work.\u003c\/p\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"TWSBI","offers":[{"title":"Extra Fine","offer_id":50537239281712,"sku":"TOE-M2531770","price":5750.0,"currency_code":"INR","in_stock":true},{"title":"Broad","offer_id":50537239347248,"sku":"TOE-M2531800","price":5750.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0569\/1405\/1120\/files\/17666477901724499566_twsbi-eco-fountain-pen-in-transparent-yellow-761_600x_c0cda411-7b42-4789-a838-4307ebbfe071.webp?v=1790161249","url":"https:\/\/penpencilink.com\/products\/twsbi-eco-fountain-pen-in-transparent-yellow","provider":"penpencilink","version":"1.0","type":"link"}