--- product_id: 347138443 title: "uni-ball Signo UM-100 0.7 mm Gel Pens, Blue Ink, Pack of 6" brand: "uni-ball" price: "$4.16" currency: USD in_stock: false reviews_count: 8 url: https://www.desertcart.us/products/347138443-uni-ball-signo-um-100-0-7-mm-gel-pens store_origin: US region: United States of America --- # Ergonomic grip for comfortable extended use Smooth gel ink flow, no skips or smudges 0.7 mm fine tip for precise writing uni-ball Signo UM-100 0.7 mm Gel Pens, Blue Ink, Pack of 6 **Brand:** uni-ball **Price:** $4.16 **Availability:** ❌ Out of Stock ## Summary > 🖋️ Write Smooth, Write Smart — Elevate Every Word! ## Quick Answers - **What is this?** uni-ball Signo UM-100 0.7 mm Gel Pens, Blue Ink, Pack of 6 by uni-ball - **How much does it cost?** $4.16 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/347138443-uni-ball-signo-um-100-0-7-mm-gel-pens) ## 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 - • **Comfort Meets Style:** Ergonomic grip and sleek design keep your hand fatigue-free during long writing sessions. - • **Versatile & Gift-Ready:** Perfect for office, school, journaling, or gifting at events—stand out with every stroke. - • **Effortless Smooth Writing:** Buttery gel ink glides seamlessly, ensuring a flawless, skip-free experience every time. - • **Precision at Your Fingertips:** 0.7 mm fine tip delivers crisp, clean lines for professional note-taking and detailed work. - • **Consistent Ink Flow Till The Last Drop:** Reliable ink delivery maintains uniform thickness without fading or blotching. ## Overview The uni-ball Signo UM-100 gel pen pack of 6 features a precise 0.7 mm fine tip with smooth, skip-free gel ink from Japan. Designed with an ergonomic grip for comfortable extended use, these pens deliver consistent, vibrant blue ink that dries quickly to prevent smudging. Ideal for professionals, students, and creatives, this pack combines reliability and style for all your writing needs. ## 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. Let you experience the thrill and enjoyment of using it, and you will fall in love with this pen immediately Unique Ink That Maintains Consistent Flowing Strokes By improving the unstable factors of the conventional gel ink, we have further improved our ink’s stability and durability. Unique twin-ball mechanism prevents ink back flow and leak. No lnk Blobbing=Clean & Perfect Lines Features Super Ink which protects against water, fading and fraud Convenient visible ink supply window so you know how much ink remains Durable Tip 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. Ultra-fine tip featuring a 0.7mm and 0.8mm-sized ball enabling precision writing for planners. With a unique nib, there will be no breakpoints during use Super Smooth Scratch- Free Tip reduces scratching, even when writing with the pen laid flat. This allows the user to write in a more flexible position. The “UNI-FLOW SYSTEM” ensures smooth writing performance to the last drop of ink. Exclusive flow gel ink system provides consistent smoothness and color intensity. Reliably smooth, free-flowing writing the moment the pen hits paper Review: Good - Nice pen for upsc Review: Best in class - The brand uniball stands for effordable quality Signo um100 is an excellent buy very smooth writing and good ink quality i have been using this brand for a long time and would highly recommend you to buy this But sadly Dont buy it on desertcart ASTHEY ARE OVERCHARGING THIS IS A SHODDY TRADE PRACTICE MRP FOR A 6 PC PACK IS 240 BUT I PAID 300 FOR IT IM ATTACHING A PICTURE OF THE PRICE TAG ## Features - Package Includes : uni-ball Pen SIGNO UM-100 Gel Pen, Tip Size - 0.7-0.8mm, Mechanism - Click-off Cap, Body Color - Blue, Ink Color - Blue, Size - Pack of 6. - 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 | B07STJBSHF | | Age Range (Description) | Adult | | Age Range Description | Adult | | Best Sellers Rank | #581 in Office Products ( See Top 100 in Office Products ) #34 in Gel Ink Rollerball Pens | | Body Shape | Round | | Brand | uni-ball | | Brand Name | uni-ball | | Closure Type | Click-Off Cap | | Colour | Blue | | Customer Reviews | 4.4 out of 5 stars 915 Reviews | | Drill Point | Fine | | Grip Type | Advance | | Hand Orientation | Ambidextrous | | Importer Contact Information | Linc Ltd., Aurora Waterfront, GN 34/1, GN Block, Sector V, Bidhannagar, Kolkata, West Bengal 700091 | | Included Components | Pack of 6 | | Ink Base | Water | | Ink Colour | Blue | | Item Dimensions | 25 x 7 x 4 Centimeters | | Item Type | Gel Ink Rollerball Pens | | Item Weight | 90 Grams | | Line Size | 0.7 | | 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 | SIGNO UM 100 | | Model number | UNPUM100BL6 | | Packer Contact Information | Ondesk Ventures Pvt Ltd. S-12 B.P Township, Kolkata-700094 T: 96593 88887 E: care@ondesk.in | | Pattern | Pen | | Recommended Uses For Product | Sketching | | Special Features | Ink,Long Lasting | | Style Name | Pack of 6 | | Subject Character | Plain | | Theme | Plain | | Unit Count | 6.0 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 UM-100 0.7 mm Gel Pens, Blue Ink, Pack of 6 - Image 1](https://m.media-amazon.com/images/I/81EQyNqXzHL.jpg) ![uni-ball Signo UM-100 0.7 mm Gel Pens, Blue Ink, Pack of 6 - Image 2](https://m.media-amazon.com/images/I/51iT35EZ0jL.jpg) ![uni-ball Signo UM-100 0.7 mm Gel Pens, Blue Ink, Pack of 6 - Image 3](https://m.media-amazon.com/images/I/51XUzBwK63L.jpg) ![uni-ball Signo UM-100 0.7 mm Gel Pens, Blue Ink, Pack of 6 - Image 4](https://m.media-amazon.com/images/I/61thqTqgvNL.jpg) ![uni-ball Signo UM-100 0.7 mm Gel Pens, Blue Ink, Pack of 6 - Image 5](https://m.media-amazon.com/images/I/71JK+lPMR6L.jpg) ## Available Options This product comes in different **Pattern, Color, Size, Style** options. ## Questions & Answers **Q: Can i get as offer** A: dnt purchase from here they will send you .7mm instead of .5mm **Q: what is total no of pen?** A: Hello, 12 pieces green pen. Regards, Shrisay ventures. **Q: Can this be used as a (whitener) correction pens over normal ball/gel pens.** A: Hello, This is a gel pen. Regards, shrisay Ventures **Q: Does this pen come in different colours also ?** A: Hello, Yes this pen comes with different colors also. Regards, Shrisay Ventures ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good *by S***K on 17 March 2026* Nice pen for upsc ### ⭐⭐⭐⭐⭐ Best in class *by V***A on 23 October 2025* The brand uniball stands for effordable quality Signo um100 is an excellent buy very smooth writing and good ink quality i have been using this brand for a long time and would highly recommend you to buy this But sadly Dont buy it on AMAZON ASTHEY ARE OVERCHARGING THIS IS A SHODDY TRADE PRACTICE MRP FOR A 6 PC PACK IS 240 BUT I PAID 300 FOR IT IM ATTACHING A PICTURE OF THE PRICE TAG ### ⭐⭐⭐⭐ Ink gets over fast *by A***R on 1 January 2026* Super quality ink but gets over fast. For the price, the pen should last longer ## Frequently Bought Together - uni-ball SIGNO UM-100 Gel Pen (Blue Ink, Pack of 6) - uni-ball Signo Gel Pen Set (Pack of 3, Blue) - UNI-BALL UNSGP153SBL3 Signo Gel Pen Set - Pack of 3 (Blue) --- ## 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.us/products/347138443-uni-ball-signo-um-100-0-7-mm-gel-pens](https://www.desertcart.us/products/347138443-uni-ball-signo-um-100-0-7-mm-gel-pens) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-05-22*