{"product_id":"ruling-pen-3-5mm-diameter","title":"Ruling Pen 3.5mm Diameter","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003ePacific Arc Ruling Pen — 3.5mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eA precision drawing tool built for clean, consistent lines. This traditional ruling pen features two adjustable metal jaws that hold ink, gouache, watercolor, masking fluid, or other fluid media between them — turn the knob to widen or narrow your line, dip the nib, and go. The hardened, nickel-plated steel nib is removable and fits into any break-leg compass, so the same tool that draws a crisp straight line can also strike a perfect arc or circle.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eA go-to for technical drawing, drafting, cartography, picture framing, and calligraphy — a favorite among letterers looking for a fine-point alternative to a fountain pen. Comes with a durable plastic handle for comfortable control.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eDetails:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\" class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eDiameter: 3.5mm\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eRemovable, hardened nickel-plated steel nib\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eCompatible with break-leg compasses for arcs and circles\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eAdjustable jaws for variable line width\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eWorks with ink, gouache, watercolor, and other fluid media\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SLS Arts","offers":[{"title":"Default Title","offer_id":54365017702710,"sku":"PKRL405","price":4.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0977\/6916\/1014\/files\/image_c6f26fec-e248-4713-9ceb-7366e95b6f1a.jpg?v=1785787399","url":"https:\/\/www.legacy-arts.com\/products\/ruling-pen-3-5mm-diameter","provider":"Legacy Arts - A Hofmann's Family Co.","version":"1.0","type":"link"}