{"product_id":"twsbi-diamond-580-clear-fountain-pen-nib-size-fine","title":"TWSBI Diamond 580 Clear Fountain Pen - Nib Size Fine","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eTWSBI Diamond 580 — Clear | Fine Nib | Piston Fill\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe TWSBI Diamond 580 is one of the most celebrated fountain pens in its class — a full demonstrator pen that wears its mechanics proudly. The clear barrel puts the piston filling system on full display, turning every ink-up into a small moment of theater.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe steel fine nib writes with pleasing precision — crisp, consistent, and well-suited to everyday writing, note-taking, and journaling. The piston mechanism holds a generous ink capacity, making it a practical choice for writers who reach for their pen daily.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eA favorite among fountain pen enthusiasts for its outstanding value, repairability, and the simple satisfaction of watching your ink level as you write.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eComplete the experience with \u003cstrong\u003e\u003ca class=\"underline underline underline-offset-2 decoration-1 decoration-current\/40 hover:decoration-current focus:decoration-current\" href=\"https:\/\/www.houseresortstationery.com\/products\/pilot-iroshizuku-kon-peki-50-ml-ink\"\u003ePilot Iroshizuku Kon-peki\u003c\/a\u003e\u003c\/strong\u003e — a rich, saturated deep blue with a hint of teal in good light, made in Japan by Pilot and named after natural Japanese landscapes. A stunning combination against the clear barrel.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eAvailable at \u003ca class=\"underline underline underline-offset-2 decoration-1 decoration-current\/40 hover:decoration-current focus:decoration-current\" href=\"https:\/\/www.houseresortstationery.com\"\u003eHouseResortStationery.com\u003c\/a\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"TWSBI","offers":[{"title":"Fine","offer_id":62788023615647,"sku":null,"price":55.99,"currency_code":"USD","in_stock":true},{"title":"Medium","offer_id":62788023648415,"sku":null,"price":55.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0560\/1424\/1951\/files\/Diamond-580-Clear-04.webp?v=1777998973","url":"https:\/\/www.houseresortstationery.com\/products\/twsbi-diamond-580-clear-fountain-pen-nib-size-fine","provider":"HouseResort Stationery","version":"1.0","type":"link"}