{"product_id":"ohto-oil-ballpoint-refill-05-black-5pack","title":"Ohto R-4C5NP 0.5mm Refill 5-Pack","description":"\u003cp\u003eThe \u003cstrong\u003eOhto R-4C5NP 0.5mm Refill 5-Pack\u003c\/strong\u003e features ultra-fine Japanese D1 ballpoint cartridges engineered with Ohto’s renowned needle-point tip. Formulated with low-viscosity soft black ink encased in a rugged stainless steel barrel, these refills produce crisp, dark, and feather-light lines with zero smudging—ideal for multi-pens, compact planners, and precision pocket pens.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUltra-Fine 0.5mm Needle Point:\u003c\/strong\u003e Precision-machined needle tip gives an unobstructed view of the contact point for razor-sharp notes and small grid writing.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow-Viscosity Soft Ink:\u003c\/strong\u003e Formulated for instant line-laydown with virtually zero drag, skipping, or ink blobbing.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInternational D1 Standard:\u003c\/strong\u003e Universal 67.3mm × 2.3mm dimensions ensure complete compatibility across major multi-pen and slim pen models.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStainless Steel Barrel:\u003c\/strong\u003e Rigid, high-durability metal casing preserves ink freshness and resists deformation inside multi-function mechanisms.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConvenient 5-Pack Supply:\u003c\/strong\u003e Provides plenty of ultra-fine backups for heavy writers, drafters, and daily pocket carry.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Ohto\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e R-4C5NP (5-Pack)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFormat:\u003c\/strong\u003e Standard D1 Refill\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTip Type:\u003c\/strong\u003e Needle Point (TC 0.5 mm ball)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInk Color:\u003c\/strong\u003e Black\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInk Formulation:\u003c\/strong\u003e Low-Viscosity Oil-Based Soft Ink\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensions:\u003c\/strong\u003e 67.3 mm × 2.3 mm (Weight: 1.0 g per refill)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBody Material:\u003c\/strong\u003e Stainless Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Models:\u003c\/strong\u003e Ohto Minimo (NBP-505MN), Multi-pens, Rhodia Script, and standard D1 pens\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"faq-item\"\u003e\n  \u003ch3\u003eWhat is the difference between the R-4C5NP and R-4C7NP refills?\u003c\/h3\u003e\n  \u003cp\u003eThe R-4C5NP features an ultra-fine 0.5mm needle point for crisp, thin lines in compact planners, while the R-4C7NP has a 0.7mm tip for broader, darker everyday writing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n  \u003ch3\u003eWill these 0.5mm refills fit other brand multi-pens?\u003c\/h3\u003e\n  \u003cp\u003eYes, because they adhere to the universal D1 standard (67.3mm × 2.3mm), they work in multi-pens and compact pens made by Zebra, Rotring, Lamy, Parker, Kaweco, and others.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n  \u003ch3\u003eIs this refill suitable for the Ohto Minimo?\u003c\/h3\u003e\n  \u003cp\u003eYes, this is the official replacement refill for the ultra-compact Ohto Minimo (NBP-505MN) pen.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"OHTO","offers":[{"title":"Default Title","offer_id":50389198372898,"sku":"R-4C5NP5","price":20.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0902\/3045\/6354\/files\/R-4C5NP_BK.jpg?v=1789983997","url":"https:\/\/www.xypen.com\/products\/ohto-oil-ballpoint-refill-05-black-5pack","provider":"XYPen","version":"1.0","type":"link"}