{"product_id":"solid-brass-pen-rest-copy","title":"Fountain Pen Nib | Pro-Flex","description":"\u003cp data-start=\"0\" data-end=\"47\"\u003e\u003cstrong data-start=\"0\" data-end=\"47\"\u003eA Professional Nib for Serious Flex Writing\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"49\" data-end=\"408\"\u003eThe \u003cstrong data-start=\"53\" data-end=\"69\"\u003ePro-Flex Nib\u003c\/strong\u003e is a titanium-coated Zebra G designed for advanced calligraphers who want exceptional flexibility and control. With a super-fine point that flexes from delicate hairlines to bold 2 mm strokes, it delivers expressive results — but requires a practiced, light touch. For this reason, it’s recommended \u003cstrong data-start=\"369\" data-end=\"407\"\u003eonly for experienced calligraphers\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"410\" data-end=\"724\"\u003eA key innovation is its integrated \u003cstrong data-start=\"445\" data-end=\"472\"\u003eleaf-spring feed system\u003c\/strong\u003e, which keeps the feed in constant contact with the nib as it flexes. Where most flex pens fail due to ink starvation, this design maintains consistent flow and even includes a small internal “sump” to store excess ink, releasing it as the nib demands.\u003c\/p\u003e\n\u003cp data-start=\"726\" data-end=\"879\"\u003eIf you’re a fountain-pen user exploring flex for the first time, start with the \u003cstrong data-start=\"806\" data-end=\"819\"\u003eSemi-Flex\u003c\/strong\u003e or \u003cstrong data-start=\"823\" data-end=\"840\"\u003eTitanium Flex\u003c\/strong\u003e nibs before moving up to the Pro-Flex.\u003c\/p\u003e\n\u003cp data-start=\"881\" data-end=\"1012\"\u003eThe nib housing is a \u003cstrong data-start=\"902\" data-end=\"923\"\u003eBock 250 (size 6)\u003c\/strong\u003e, compatible with all Tom’s Studio fountain pens and many others using the same standard.\u003c\/p\u003e\n\u003cp data-start=\"1014\" data-end=\"1324\"\u003eUnlike standard stainless-steel fountain pen nibs, calligraphy nibs use softer alloys for enhanced flex — but they corrode more easily. The titanium coating on the Pro-Flex dramatically extends its life, lasting up to six times longer. When it eventually wears out, simply remove it with pliers and replace it.\u003c\/p\u003e\n\u003cp data-start=\"1326\" data-end=\"1520\"\u003eBecause this is a high-flow (“juicy”) nib, occasional leaking can occur, especially during travel. To prevent this, remove the ink cartridge or converter before storing or transporting your pen.\u003c\/p\u003e\n\u003cp data-start=\"1522\" data-end=\"1730\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eEye-dropper pens may also experience inconsistent flow or “ink burping,” which can affect high-demand nibs like the Pro-Flex. If this happens, switch back to a cartridge or converter for steadier performance.\u003c\/p\u003e","brand":"Tom's Studio","offers":[{"title":"Default Title","offer_id":51968178553160,"sku":"PRO-NIB-FOU-PF-PROTO","price":35.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0920\/5114\/5032\/files\/ProFlexFountainPenNibWriting.webp?v=1762809349","url":"https:\/\/shop.penandpaper.co.uk\/products\/solid-brass-pen-rest-copy","provider":"The Pen and Paper Stationery Company","version":"1.0","type":"link"}