{"product_id":"twsbi-eco-fountain-pen-black","title":"TWSBI Eco Fountain Pen - Black","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cspan\u003eA demonstrator-style piston filler with a clear acrylic barrel and a solid black hexagonal cap. TWSBI's entry-level model, widely credited with bringing piston-filling into reach at this price point. Made for the beginner who just wants to try out fountain pens, all the way to the experts. A good everyday worker.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eWhy It's Special\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003ePiston-filling mechanism at an entry-level price — most pens this affordable use cartridges or converters\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eHigh ink capacity, roughly 1.7 ml — several times what a standard converter holds\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eClear barrel lets you see ink level and color\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFully user-serviceable; ships with a wrench and silicone grease for disassembly and maintenance\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eGerman-made stainless steel nib\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eType: Fountain pen, medium nib\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eMaterial: Clear acrylic barrel, black resin cap and piston knob\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eTrim: Chrome\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eFilling: Piston\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eInk capacity: ~1.7 ml\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCap: Hexagonal, screw-on, postable\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCapped length: 138.4 mm\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003ePosted length: 167.6 mm\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eBody diameter: 12.7 mm\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eWeight: ~21 g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003ePlease note: TWSBI products are not eligible for discounts.\u003c\/em\u003e\u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Extra Fine","offer_id":47859727827109,"sku":"TSB-M7444280","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Fine","offer_id":47859727859877,"sku":"TSB-M7444290","price":36.99,"currency_code":"USD","in_stock":true},{"title":"Medium","offer_id":47859727892645,"sku":"TSB-M7444300","price":36.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0587\/6046\/2501\/files\/TWSBIEcoFountainPen-Black-PistonFiller-Demonstrator-MadeinTaiwan_1_webp.jpg?v=1779925322","url":"https:\/\/thepapermind.mom\/products\/twsbi-eco-fountain-pen-black","provider":"The Paper Mind","version":"1.0","type":"link"}