--- product_id: 342033833 title: "uni-ball Eye Broad UB-150-10 Rollerball pen, 1mm nib, Black ink, box of 12" brand: "uni-ball" price: "¥4944" currency: JPY in_stock: true reviews_count: 6 category: "Uni Ball" url: https://www.desertcart.jp/products/342033833-uni-ball-eye-broad-ub-150-10-rollerball-pen-1mm store_origin: JP region: Japan --- # Waterproof, fade-resistant uni Super Ink Transparent ink window for timely refills 1.0mm broad nib for bold writing uni-ball Eye Broad UB-150-10 Rollerball pen, 1mm nib, Black ink, box of 12 **Brand:** uni-ball **Price:** ¥4944 **Availability:** ✅ In Stock ## Summary > 🖋️ Write Bold, Stay Brilliant – Because Your Ideas Deserve to Be Seen ## Quick Answers - **What is this?** uni-ball Eye Broad UB-150-10 Rollerball pen, 1mm nib, Black ink, box of 12 by uni-ball - **How much does it cost?** ¥4944 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/342033833-uni-ball-eye-broad-ub-150-10-rollerball-pen-1mm) ## Best For - uni-ball enthusiasts ## Why This Product - Trusted uni-ball brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Ink Flow Mastery:** Uni-Flow system guarantees smooth, uninterrupted ink delivery—no skips, no jams, just flawless writing. - • **Bold & Expressive Writing:** 1.0mm rollerball nib delivers clear, broad strokes that stand out in every note or signature. - • **Stay Ahead with Ink Window:** Innovative transparent barrel lets you track ink levels, so you never get caught off guard mid-sentence. - • **Fade-Free & Water Resistant:** Uni Super Ink technology ensures your writing stays vibrant and tamper-proof, perfect for important documents. - • **Sleek & Professional Design:** Rose-gold accented barrel combines style with comfort, making a statement in any meeting or workspace. ## Overview The uni-ball Eye Broad UB-150-10 is a premium rollerball pen featuring a robust 1.0mm broad nib for bold, legible writing. Equipped with uni Super Ink, it offers waterproof, fade-resistant, and tamper-proof performance ideal for professional and academic use. Its uni-flow system ensures consistent ink delivery, while the transparent ink window keeps you informed on ink levels. Packaged in a stylish rose-gold barrel, this box of 12 pens blends reliability with sophisticated design. ## Description Be bold, write broad! The new Eye Broad has everything you’d expect from your uni-ball Eye pen – reliability, smooth flowing ink and a comfortable grip – but with a robust 1. 0mm rollerball for expressive, broad handwriting. Great for when you need clear, easy-to-read script. One of the world’s favourite rollerballs for more than 20 years, the Eye contains waterproof pigment ink – or uni Super Ink as we call it – which is fade free, water resistant and tamper-proof. So it’s excellent for essay writing, course work and those all-important thank you letters and cards! Encased in a sleek rose-gold barrel, the Eye Broad is both stylish and super reliable. The unique ‘uni-flow’ system ensures a consistent and continuous ink flow right to the last drop so you don’t have to worry about the pen jamming or ink running out. Plus the barrel’s handy ink window lets you know in good time when it’s time to replace your pen. Review: Great pen. - Amazing product quality. Received as scheduled. Review: Fluide et agréable - C'est la première fois que je prends des stylos de cette épaisseur et je suis agréablement surpris par la fluidité et le confort d'écriture. Évidemment, le débit étant plus élevé ils se vident plus rapidement. ## Features - WINDOW BARREL - Allows you to see when the ink is running out. - UNI-FLOW SYSTEM - Controls and promotes ink flow to the tip, ensuring continuous writing and instant restart of the stroke after use. - UNI SUPER INK TECHNOLOGY - Fade free, water resistant and tamper proof. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07SX5QS6S | | Additional Features | Waterproof | | Age Range Description | Adult | | Age range (description) | Adult | | Animal Theme | no animal theme | | Body Shape | Round | | Brand | uni-ball | | Brand Name | uni-ball | | Closure Type | Click-Off Cap | | Color | Black | | Colour | Black | | Country of Publication | Japan | | Customer Reviews | 4.7 out of 5 stars 156 Reviews | | Drill Point | Broad | | Global Trade Identification Number | 04548351100131 | | Grip Type | Contoured | | Hand Orientation | Ambidextrous | | Included Components | Cap or Cover | | Ink Base | Water | | Ink Color | Black | | Ink colour | Black | | Item Diameter | 1 Millimeters | | Item Dimensions | 14 x 7.6 x 2.6 centimeters | | Item Type Name | Rollerball Pens | | Item Weight | 127.2 Grams | | Line Size | Broad | | Manufacturer | Mitsubishi Pencil | | Material | Plastic Metal | | Material Type | Plastic Metal | | Model Name | UB-150-10 | | Model Number | 246959000 | | Recommended Uses For Product | Coloring, Drawing, Sketching, Writing | | Style | 12 Black | | Theme | No theme | | Unit Count | 12 Count | | Water Resistance Level | Water Resistant | | Writing Instrument Form | Roller Ball Pen | | Writing Technique | Ballpoint | | Writing instrument form | Roller Ball Pen | ## Product Details - **Age range (description):** Adult - **Brand:** uni-ball - **Colour:** Black - **Ink colour:** Black - **Writing instrument form:** Roller Ball Pen ## Images ![uni-ball Eye Broad UB-150-10 Rollerball pen, 1mm nib, Black ink, box of 12 - Image 1](https://m.media-amazon.com/images/I/81j710KpQiL.jpg) ![uni-ball Eye Broad UB-150-10 Rollerball pen, 1mm nib, Black ink, box of 12 - Image 2](https://m.media-amazon.com/images/I/81VAKPHbMXL.jpg) ![uni-ball Eye Broad UB-150-10 Rollerball pen, 1mm nib, Black ink, box of 12 - Image 3](https://m.media-amazon.com/images/I/91wY+If59pL.jpg) ![uni-ball Eye Broad UB-150-10 Rollerball pen, 1mm nib, Black ink, box of 12 - Image 4](https://m.media-amazon.com/images/I/71urfvFnCEL.jpg) ![uni-ball Eye Broad UB-150-10 Rollerball pen, 1mm nib, Black ink, box of 12 - Image 5](https://m.media-amazon.com/images/I/71vjhU-UzQL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great pen. *by R***L on 16 October 2025* Amazing product quality. Received as scheduled. ### ⭐⭐⭐⭐⭐ Fluide et agréable *by G***L on 21 October 2021* C'est la première fois que je prends des stylos de cette épaisseur et je suis agréablement surpris par la fluidité et le confort d'écriture. Évidemment, le débit étant plus élevé ils se vident plus rapidement. ### ⭐⭐⭐⭐⭐ Ottime Penne Roller *by A***E on 23 April 2024* Penne che uso da molti anni scrittura da 1.0 mm per chi ama le linee più spessa, molto scorrevole e l'inchiostro dura tanto, le consiglio Penne con queste caratteristiche ne esistono poche io le colleziono possiedo centinaia di Roller anche quelle introvabili in Italia . ## Frequently Bought Together - uni-ball Eye Broad UB-150-10 Rollerball pen, 1mm nib, Black ink, box of 12 - Uni-Ball 162545000 0.5 mm Nib Ub-150 Eye Micro Rollerball Pen 12Pack Black - Uni-Ball UB-150 Eye Micro Liquid Ink Rollerball Pen 4-Pack, 0.5 mm Tip Size, Black/Blue/Green/Red --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.jp/products/342033833-uni-ball-eye-broad-ub-150-10-rollerball-pen-1mm](https://www.desertcart.jp/products/342033833-uni-ball-eye-broad-ub-150-10-rollerball-pen-1mm) --- *Product available on Desertcart Japan* *Store origin: JP* *Last updated: 2026-08-21*