{"product_id":"studio-fountain-pen-rollerball-conversion-kit","title":"Rollerball Conversion Kit","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\" data-sourcepos=\"16:1-17:233;815-1064\"\u003eSometimes you just fancy a different kind of glide. This Rollerball Conversion Kit swaps your Studio Fountain Pen's nib unit for a smooth rollerball mechanism, so the same pen you already own can write two completely different ways.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"auto\" data-sourcepos=\"19:1-19:181;1066-1246\"\u003eNo new pen to buy, no tools needed - just unscrew your nib unit and twist the rollerball mechanism in. Switch back to fountain pen writing whenever the mood (or the ink) takes you.\u003c\/p\u003e","brand":"Accessories","offers":[{"title":"Default Title","offer_id":64021674951033,"sku":"BUN-PEN-HMP-RB-CONV-KIT","price":447.0,"currency_code":"DKK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0089\/6129\/4417\/files\/HandmadePen_ASH_WEB6.jpg?v=1784118754","url":"https:\/\/tomsstudio.com\/en-dk\/products\/studio-fountain-pen-rollerball-conversion-kit","provider":"Tom's Studio","version":"1.0","type":"link"}