---
product_id: 20836227
title: "Uni-ball Signo Um-151 Gel Ink Pen - 0.38 Mm - 10 Set (Black)"
brand: "三菱鉛筆"
price: "$45"
currency: NZD
in_stock: true
reviews_count: 11
category: "三菱鉛筆"
url: https://www.desertcart.nz/products/20836227-uni-ball-signo-um-151-gel-ink-pen-0-38
store_origin: NZ
region: New Zealand
---

# smear-proof, instant-dry gel ink long-lasting pigment ink 0.38mm ultra-fine tip Uni-ball Signo Um-151 Gel Ink Pen - 0.38 Mm - 10 Set (Black)

**Brand:** 三菱鉛筆
**Price:** $45
**Availability:** ✅ In Stock

## Summary

> 🖋️ Write sharp, write smart—never miss a line with Uni-ball Signo.

## Quick Answers

- **What is this?** Uni-ball Signo Um-151 Gel Ink Pen - 0.38 Mm - 10 Set (Black) by 三菱鉛筆
- **How much does it cost?** $45 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.nz](https://www.desertcart.nz/products/20836227-uni-ball-signo-um-151-gel-ink-pen-0-38)

## Best For

- 三菱鉛筆 enthusiasts

## Why This Product

- Trusted 三菱鉛筆 brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Value-Packed Set:** Get 10 premium black gel pens at an unbeatable price—because your creativity deserves the best tools.
- • **Comfort Meets Style:** Ergonomic smooth grip and sleek round barrel keep your hand fatigue-free during marathon brainstorming sessions.
- • **Smudge-Free Confidence:** Instant-drying gel ink ensures your work stays clean and professional—no more embarrassing smears.
- • **Precision in Every Stroke:** Experience flawless 0.38mm micropoint writing for crisp, detailed notes and sketches.
- • **Vivid, Fade-Resistant Lines:** Pigment-based ink resists fading and water damage, preserving your ideas indefinitely.

## Overview

The Uni-ball Signo UM-151 Gel Ink Pen set features ten black pens with ultra-fine 0.38mm tips, delivering smooth, precise writing. Its pigment-based gel ink is instantly dry, smear-proof, and resistant to fading and water, ensuring your notes stay vivid and professional. Designed with a comfortable grip and durable metal tip, this set is perfect for professionals who demand reliability and style in their everyday writing tools.

## Description

Signo is pigmented ink Lasting freshness and smear-proof Pigment inks are used to resist fading in light and bleeding through water. Therefore, you can leave vivid lines forever.

Review: Best Pen I Have Ever Used! - I'll admit it...I'm a pen snob. I love writing (both the craft of forming letters with a good pen and the art of expressing myself on paper). No doubt, that is why I enjoy writing product reviews. However, when I write, I want a good pen in hand. Sure, often I compose at the keyboard. However, when I have writer's block, I pick up a good pen like this Uni-ball Signo Um-151 Gel Ink Pen. It just seems to get my creative juices flowing. The first day, I noticed the tiniest hint of scratchiness with this pen. After using it for a short time, it seemed to go away. Either I broke the pen in, or I got used to it. Whatever, I adore this pen and all its features. I recently tried these Uni-ball Signo Um-151 Gel Ink Pens for the first time. I thought I had tried almost every micropoint pen on the market. Obviously not. These pens are absolutely fabulous: . 38 mm micropoint . metal tip . gel ink . no smudging or leaking . open Es, As, and Os no matter how small you write . instant drying ink . smooth writing/beautiful lines . comfort grip . round barrel . snap on cap . pocket clip . long lasting .very reasonable price ($1.50 a pen) This is a five star pen in my book. I'm going to have a hard time finding a pen that can beat this one at this price. Very highly recommend to other lovers of micropoint pens! Love it!
Review: These are my absolute favorite pens! - I love these pens and never want to be without them. I keep a few boxes in my desk drawer and really like that desertcart sells these by the box at an affordable price. The pens themselves are simple but very high quality. What really sets these pens apart is the way they write, smooth, reliable, and precise. Highly recommended.

## Features

- Color: Black
- 0.38mm tip
- 10 pens

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0055QGYTA |
| Best Sellers Rank | #79,331 in Office Products ( See Top 100 in Office Products ) #1,642 in Gel Ink Pens |
| Brand | 三菱鉛筆 |
| Closure | Click-Off Cap |
| Color | Black 10pcs |
| Customer Reviews | 4.6 4.6 out of 5 stars (867) |
| Date First Available | April 2, 2013 |
| Grip Type | smooth |
| Ink Color | Black |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.405 ounces |
| Item model number | ハコUM151.24 |
| Line Size | 0.38 Millimeters |
| Manufacturer | 三菱鉛筆 |
| Manufacturer Part Number | ハコUM151.24 |
| Material Type | Plastic |
| Number of Items | 10 |
| Point Type | Fine |
| Product Dimensions | 0.61 x 0.45 x 5.43 inches |
| Size | 1 Count (Pack of 10) |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** 三菱鉛筆
- **Color:** Black 10pcs
- **Ink Color:** Black
- **Writing Instrument Form:** Roller Ball Pen

## Images

![Uni-ball Signo Um-151 Gel Ink Pen - 0.38 Mm - 10 Set (Black) - Image 1](https://m.media-amazon.com/images/I/71qFjGtWLqL.jpg)

## Available Options

This product comes in different **Color** options.

## Questions & Answers

**Q: Are the pens sent, the exact pens by Mitsubishi?**
A: No they were not. Similar ones but not those pens. What do we do about that?

**Q: My pens do not have a "DX" written on them, and there is small Japanese writing above the ".38" on the clip. Are your pens like this?**
A: Yes. I have just purchased one thousand of these from Japan. The new pens do not have DX written on them. They have uniball signo,  0.38 and Japanese writing written in orange on the cap. The pen itself has um-151 and .24 printed in black on the side. it has number 4902778556108 and 150 printed on it. I hope this helps!

**Q: Do these pens smear when highlighting over it with midliners??**
A: They do. Even if you let them dry for a little while (say going back to review notes after a couple days) they still smear. I usually highlight under my writing. These pens are gel so they’re bound to smear

**Q: Are these waterproof?**
A: These pens are not water-proof. While the pen's shell and grip are resistant to incidental contact with water, the tip of the pen is not. 

Avoid exposing the pen to liquids under extreme temperature or pressures.
Avoid exposing the pen to corrosive chemicals.
Do not submerge the pen in water. 
Do not attempt to write underwater with this pen. 

Contacting the pen's tip with very hard water may result in jamming of the tip's mechanism with crystal deposits, which may cause uneven or no ink release. Attempting to clear this by tapping the tip on a hard surface may clear it, but will result in breaking the tip.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best Pen I Have Ever Used!
*by D***Y on October 12, 2020*

I'll admit it...I'm a pen snob. I love writing (both the craft of forming letters with a good pen and the art of expressing myself on paper). No doubt, that is why I enjoy writing product reviews. However, when I write, I want a good pen in hand. Sure, often I compose at the keyboard. However, when I have writer's block, I pick up a good pen like this Uni-ball Signo Um-151 Gel Ink Pen. It just seems to get my creative juices flowing. The first day, I noticed the tiniest hint of scratchiness with this pen. After using it for a short time, it seemed to go away. Either I broke the pen in, or I got used to it. Whatever, I adore this pen and all its features. I recently tried these Uni-ball Signo Um-151 Gel Ink Pens for the first time. I thought I had tried almost every micropoint pen on the market. Obviously not. These pens are absolutely fabulous: . 38 mm micropoint . metal tip . gel ink . no smudging or leaking . open Es, As, and Os no matter how small you write . instant drying ink . smooth writing/beautiful lines . comfort grip . round barrel . snap on cap . pocket clip . long lasting .very reasonable price ($1.50 a pen) This is a five star pen in my book. I'm going to have a hard time finding a pen that can beat this one at this price. Very highly recommend to other lovers of micropoint pens! Love it!

### ⭐⭐⭐⭐⭐ These are my absolute favorite pens!
*by M***M on December 2, 2023*

I love these pens and never want to be without them. I keep a few boxes in my desk drawer and really like that Amazon sells these by the box at an affordable price. The pens themselves are simple but very high quality. What really sets these pens apart is the way they write, smooth, reliable, and precise. Highly recommended.

### ⭐⭐⭐⭐⭐ THE best pen I've ever used in the world... better than Mont Blanc!
*by K***U on August 6, 2014*

I Love these pens! Years ago i've gone to asia hunting for these pens in many many stalls, shops and stores. Easily THE best writing utensil I've ever used in terms of quality of ink, feel of the pen, and the overall look of the writing. The ball on the ballpoint is very smooth and high quality, not like those cheap american pens you get even at high prices. It's very smooth writing. I also like the thinner writing size. 0.38 I feel is the perfect size and balance between readability and practicality. I also own the 0.28 variant of this pen, and while I felt you can fit more words on a page with a thinner writing pen, it becomes hard to read at times because of how small the words look. I've also used many brands of 0.38 pens that you can find at Staples, office depot, office max, and various stationary stores around the world, but nothing comes close to this one. Even Mont Blanc pens are not as smooth writing as this one. And for the price it's just the best. The only thing i wish they had was a physically shorter and slimmer version to carry in your wallet.

## Frequently Bought Together

- Uni-ball Signo Um-151 Gel Ink Pen - 0.38 Mm - 10 Set (Black)
- Uni-ball Signo DX UM-151 Gel Ink Pen 10 Set(Blue-Black)
- Uni-Ball Signo Gel Ink Pen, Blue, 0.38mm, Pack of 10

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*Product available on Desertcart New Zealand*
*Store origin: NZ*
*Last updated: 2026-02-11*