{"product_id":"twsbi-diamond-580-iris-fountain-pen","title":"TWSBI Diamond 580 Iris Fountain Pen","description":"\u003ch2\u003eTWSBI Diamond 580 Iris Fountain Pen\u003c\/h2\u003e\n\u003cp\u003eThe Diamond 580 is TWSBI's flagship demonstrator pen, and the Iris finish brings a deep, jewel-toned purple to its faceted acrylic body — a design that lets you see the piston mechanism in action every time you write.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFaceted \"diamond-cut\" acrylic barrel in a rich Iris purple\u003c\/li\u003e\n\u003cli\u003eStainless steel nib, available in Extra Fine, Fine, Medium, Broad, and Stub 1.1mm\u003c\/li\u003e\n\u003cli\u003eFully transparent design showcasing the internal piston mechanism\u003c\/li\u003e\n\u003cli\u003eFully detachable parts for easy cleaning and maintenance\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFilling System\u003c\/h3\u003e\n\u003cp\u003eThe 580 uses a piston-filling mechanism with roughly 30% more ink capacity than TWSBI's earlier 530 model, along with a smoother-turning cap thread for everyday reliability.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eTWSBI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeries\u003c\/td\u003e\n\u003ctd\u003eDiamond 580\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eIris\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilling Mechanism\u003c\/td\u003e\n\u003ctd\u003ePiston Filler\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNib Material\u003c\/td\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNib Sizes\u003c\/td\u003e\n\u003ctd\u003eExtra Fine, Fine, Medium, Broad, Stub 1.1mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody Material\u003c\/td\u003e\n\u003ctd\u003eFaceted Acrylic (Demonstrator)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e","brand":"TWSBI","offers":[{"title":"Extra Fine","offer_id":46593143865502,"sku":"M7449260","price":12325.0,"currency_code":"INR","in_stock":false},{"title":"Broad","offer_id":46593143898270,"sku":"M7449290","price":12325.0,"currency_code":"INR","in_stock":true},{"title":"Fine","offer_id":46593143931038,"sku":"M7449270","price":12325.0,"currency_code":"INR","in_stock":false},{"title":"STUB 1.1","offer_id":46593143963806,"sku":"M7449300","price":12325.0,"currency_code":"INR","in_stock":false},{"title":"Medium","offer_id":46593143996574,"sku":"M7449280","price":12325.0,"currency_code":"INR","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0687\/0224\/0926\/files\/iris-1_1000x1000_crop_center_b08fd77e-ab8b-4109-8b15-9f42e224ef50.webp?v=1784361036","url":"https:\/\/pensouq.in\/products\/twsbi-diamond-580-iris-fountain-pen","provider":"PEN SOUQ","version":"1.0","type":"link"}