{"product_id":"uni-uniball-one-3-multi-function-3-color-gel-ink-pen-0-38mm-0-5mm","title":"Uni Uniball One 3 Multi-Function 3-Color Gel Ink Pen 0.38mm\/0.5mm","description":"\u003cp\u003e\u003cstrong\u003eThree colors. One pen. Zero compromise.\u003c\/strong\u003e The \u003cstrong\u003eUni Uniball One 3\u003c\/strong\u003e is a premium Japanese multi-function gel ink pen that puts black, red, and blue ink at your fingertips — switchable with a single click. Engineered by Mitsubishi Pencil Co., it combines the legendary Uniball One ink formula with a sleek, compact rotating body built for everyday precision.\u003c\/p\u003e\n\u003ch2\u003eWhy the Uniball One 3 Stands Apart\u003c\/h2\u003e\n\u003cp\u003eThe Uniball One series is celebrated for its \u003cstrong\u003ehigh-concentration pigment ink\u003c\/strong\u003e that delivers exceptionally dark, vivid lines — even on glossy or coated paper. The \"One 3\" takes that ink and packages it into a \u003cstrong\u003e3-color modular system\u003c\/strong\u003e, so you can color-code notes, annotate documents, and sign with style — all without switching pens.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e3-in-1 multi-color system\u003c\/strong\u003e — Black, Red, and Blue gel ink in a single pen body\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.38mm ultra-fine tip\u003c\/strong\u003e — crisp, precise lines ideal for dense note-taking, kanji, and detailed writing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRetractable twist mechanism\u003c\/strong\u003e — rotate the barrel to select your color; no caps to lose\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniball One high-density ink\u003c\/strong\u003e — rich, saturated pigment that resists feathering and bleed-through\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModular refill design\u003c\/strong\u003e — individual color modules are replaceable, reducing waste\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact, pocket-friendly body\u003c\/strong\u003e — slim profile fits comfortably in any pen case, pocket, or planner loop\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in Japan\u003c\/strong\u003e — Mitsubishi Pencil Co. quality, trusted by students and professionals worldwide\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePerfect For\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eStudents who color-code lecture notes and study guides\u003c\/li\u003e\n\u003cli\u003eProfessionals annotating reports, contracts, and planners\u003c\/li\u003e\n\u003cli\u003eBullet journalers and planner enthusiasts who need multiple colors on hand\u003c\/li\u003e\n\u003cli\u003eAnyone who appreciates the precision of Japanese stationery engineering\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInk Colors Included\u003c\/h2\u003e\n\u003cp\u003eEach pen comes loaded with three Uniball One gel ink modules:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e⚫ \u003cstrong\u003eBlack\u003c\/strong\u003e — deep, authoritative, perfect for primary writing\u003c\/li\u003e\n\u003cli\u003e🔴 \u003cstrong\u003eRed\u003c\/strong\u003e — vivid and bold, ideal for corrections and emphasis\u003c\/li\u003e\n\u003cli\u003e🔵 \u003cstrong\u003eBlue\u003c\/strong\u003e — classic and professional, great for signatures and annotations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Uni (Mitsubishi Pencil Co., Japan)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e Uniball One 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTip Size:\u003c\/strong\u003e 0.38mm\/0.5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInk Type:\u003c\/strong\u003e Gel (high-concentration pigment)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColors:\u003c\/strong\u003e Black \/ Red \/ Blue\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanism:\u003c\/strong\u003e Retractable twist-select\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRefillable:\u003c\/strong\u003e Yes (modular ink cartridges)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Japan\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eUpgrade your everyday carry. One pen, three colors, infinite possibilities — the Uni Uniball One 3 is the last multi-pen you'll ever need.\u003c\/em\u003e\u003c\/p\u003e","brand":"Uni","offers":[{"title":"Grass Green 0.38mm","offer_id":54418919686449,"sku":"UME3-0.38MM-1","price":23.0,"currency_code":"USD","in_stock":true},{"title":"Shirt Blue 0.5mm","offer_id":54418919719217,"sku":"UME3-0.38MM-2","price":23.0,"currency_code":"USD","in_stock":true},{"title":"Brick Red 0.5mm","offer_id":54418919751985,"sku":"UME3-0.38MM-3","price":23.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0804\/2630\/3793\/files\/O1CN01ovI8u41MVZSxRY2Ln__48091440.jpg_7d937340-1047-4efc-8044-1d0daff2f971.webp?v=1780560946","url":"https:\/\/www.ttpen.com\/products\/uni-uniball-one-3-multi-function-3-color-gel-ink-pen-0-38mm-0-5mm","provider":"TTpen","version":"1.0","type":"link"}