--- product_id: 138768274 title: "uni-ball Signo Gel Impact UM153S 1.0mm Gel Pen | Blue Ink, Pack of 1" brand: "uni-ball" price: "97217₫" currency: VND in_stock: true reviews_count: 8 category: "Uni Ball" url: https://www.desertcart.vn/products/138768274-uni-ball-signo-gel-impact-um153s-1-0mm-gel-pen store_origin: VN region: Vietnam --- # UNI-FLOW SYSTEM ensures smooth, consistent ink flow Ergonomic rubber grip for fatigue-free writing 1.0mm broad tip for bold, confident strokes uni-ball Signo Gel Impact UM153S 1.0mm Gel Pen | Blue Ink, Pack of 1 **Brand:** uni-ball **Price:** 97217₫ **Availability:** ✅ In Stock ## Summary > 🖋️ Write Boldly, Flow Smoothly, Stand Out Effortlessly ## Quick Answers - **What is this?** uni-ball Signo Gel Impact UM153S 1.0mm Gel Pen | Blue Ink, Pack of 1 by uni-ball - **How much does it cost?** 97217₫ with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/138768274-uni-ball-signo-gel-impact-um153s-1-0mm-gel-pen) ## 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 - • **Flawless Ink Flow:** Advanced UNI-FLOW SYSTEM guarantees smooth, uninterrupted writing to the last drop. - • **Comfort Meets Control:** Ergonomic rubber grip designed for extended use without hand fatigue. - • **Bold & Precise Writing:** 1.0mm tip delivers strikingly clear, confident lines every time. - • **Fade & Water Resistant:** Pigmented gel ink locks in vibrant blue color that resists water and fading. - • **Versatile Everyday Essential:** Perfect for professional note-taking, journaling, sketching, and gifting at events. ## Overview The uni-ball Signo Gel Impact UM153S is a premium 1.0mm gel pen featuring Mitsubishi’s patented UNI-FLOW SYSTEM for consistent ink delivery and a smooth writing experience. Its ergonomic rubber grip ensures comfort during long writing sessions, while the pigmented blue gel ink offers water and fade resistance, making it ideal for professional use, journaling, and creative tasks. Crafted in Japan with durable materials, this pen combines precision, reliability, and style in a sleek, single-pack design. ## Description Product Description Mitsubishi Pencil from Shingawa, Tokyo, Japan has been working since 1887 to improve the quality of its products and enhance its technologies. This writing instrument manufacturers to take environmental issues into consideration, launching products with recycled materials in 1992. About uni-ball products are developed through technical expertise accumulated over the years include “uni-ball” water based ink balls with metal tips that dominate the world market. An established product with reliable features. The “UNI-FLOW SYSTEM” ensures a continuous write with the same thickness to the very last drop of ink. Water Resistant Dyestuff Ink particle is easily soluble in water and will bleed on the paper, uni super ink – pigmented ink will bond itself to the paper fibers once it is settled, it is not soluble in water. Light Resistant The size of uni super ink particle is larger than dyestuff Ink. Therefore its surface is less affected and the colour remains vivid. Time Resistant Difference between structure of molecules. Molecules of dye ink break down because of the sunlight and air but uni Super ink is difficult to break down. Gel Ink and Twin-Ball Structure of the Twin-Ball Mechanism Employing a water-based gel ink, Signo ensures constant ink flow without blurring or dripping. Its twin-ball mechanism prevents excessive ink flow. When the pen is positioned in a downward position, the ink flows smoothly from the ink flow channel. When the pen is positioned in an upward position, the reverse flow prevention ball works to stop the flow of air into the ink. Gel ink writes smoothly and does not blur! When you start writing, the ball in the pen rotates to mix the viscous ink causing it to thin. The pen glides on paper, providing a smooth write. Once the ink touches the paper, it hardens quickly when returning to its previous viscosity, which allows you to draw lines that do not blur. Structure of the UNI-FLOW SYSTEM The “UNI-FLOW SYSTEM” ensures smooth writing performance to the last drop of ink. Excess ink flow from the ink reservoir can be temporarily stored to ensure constant ink flow to the pen point. Unique twin-ball mechanism prevents ink back flow and leak. Comfortable Rubber Grip High-quality finish with a plastic clip and comfortable grip, etc. Rubber grip that fits comfortably in your hand for ultra-fine precision and fatigue-free writing. Fine Lines Ultra-fine tip featuring a 0.28mm-sized ball enabling precision writing for planners and technical drawings. 0.28mm-sized to 1.0mm-sized balls for versatile application at work or school. Self-developed, precision stainless steel tip with superior durability and gel ink that enables you to draw solid, fine lines. ## Features - Package Includes : uni-ball Pen Signo UM153S Gel Pen, Tip Size - 1.0mm, Mechanism - Click-off Cap, Body Color - Blue, Ink Color - Blue, Size - Pack of 1. - Ergonomic Grip For Easy Handling of The Pen. - The pen ensures a continuous write with the same thickness till the last drop of the ink. - The pen gives a smooth & delightful writing experience. - These writing instruments are perfect gifts for the guest book table at conventions, parties & so much more. These pens are suitable for school, office & home. Ideal for writing, journaling, note-taking, underlining, sketching & more. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07NTG44KK | | Age Range (Description) | Adult | | Age Range Description | Adult | | Best Sellers Rank | #2,796 in Office Products ( See Top 100 in Office Products ) #142 in Gel Ink Rollerball Pens | | Body Shape | Round | | Brand | uni-ball | | Brand Name | uni-ball | | Closure Type | Clip | | Colour | Blue | | Country of Origin | Japan | | Customer Reviews | 4.3 out of 5 stars 252 Reviews | | Drill Point | Broad | | Grip Type | Advance | | Hand Orientation | Ambidextrous | | Hardness | 2B | | Importer Contact Information | Linc Ltd., Aurora Waterfront, GN 34/1, GN Block, Sector V, Bidhannagar, Kolkata, West Bengal 700091 | | Included Components | 1 | | Ink Base | Water | | Ink Colour | Blue | | Item Dimensions | 15 x 1.5 x 1.5 Centimeters | | Item Type | Gel Ink Rollerball Pens | | Item Weight | 12 Grams | | Line Size | 1 | | Manufacturer | MITSUBISHI PENCIL CO., Mitsubishi Pencil Company Limited, 5-23-37, Higashi-Ohi, Shinagawa, Tokyo 140-8537, Japan | | Manufacturer Contact Information | Mitsubishi Pencil Company Limited, 5-23-37, Higashi-Ohi, Shinagawa, Tokyo 140-8537, Japan | | Material | Plastic | | Material Type | Plastic | | Model Name | Gel Impact UM 153S | | Model number | UNSGP153SBL | | Packer Contact Information | Ondesk Ventures Pvt Ltd. S-12 B.P Township, Kolkata-700094 T: 96593 88887 E: care@ondesk.in | | Pattern | Solid | | Recommended Uses For Product | Sketching | | Special Features | Long Lasting | | Style Name | gel ink pen | | Subject Character | Plain | | Unit Count | 1.0 Count | | Writing Instrument Form | Roller Ball Pen | | Writing instrument form | Roller Ball Pen | ## Product Details - **Age Range (Description):** Adult - **Brand:** uni-ball - **Colour:** Blue - **Ink Colour:** Blue - **Writing instrument form:** Roller Ball Pen ## Images ![uni-ball Signo Gel Impact UM153S 1.0mm Gel Pen | Blue Ink, Pack of 1 - Image 1](https://m.media-amazon.com/images/I/51qD5VX9dYL.jpg) ![uni-ball Signo Gel Impact UM153S 1.0mm Gel Pen | Blue Ink, Pack of 1 - Image 2](https://m.media-amazon.com/images/I/51NphtdXXhL.jpg) ![uni-ball Signo Gel Impact UM153S 1.0mm Gel Pen | Blue Ink, Pack of 1 - Image 3](https://m.media-amazon.com/images/I/81QY+9yfKWL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by S***R on 17 March 2026* ### ⭐⭐⭐⭐⭐ Review *by L***N on 9 March 2024* ### ⭐⭐⭐⭐ Review *by V***K on 5 January 2026* ## Frequently Bought Together - UNI-BALL Signo Gel Impact UM153S 1.0mm Gel Pen | Blue Ink, Pack of 1 - UNI-BALL Signo Gel Impact UM153S 1.0mm Gel Pen | Black Ink, Pack of 1 - UNI-BALL Signo UM153S 1.0mm Gel Pen | Lightweighted Sleek Body | Water & Fade Resistant | Long Lasting Smudge Free Ink | School and Office stationery | Red Ink, Pack of 1 --- ## 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.vn/products/138768274-uni-ball-signo-gel-impact-um153s-1-0mm-gel-pen](https://www.desertcart.vn/products/138768274-uni-ball-signo-gel-impact-um153s-1-0mm-gel-pen) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-05-09*