---
product_id: 1482177
title: "Signo Dx Um-151 Gel Ink Pen - 0.38 Mm - 10 Pcs - Black - Uni Mitsubishi Pencil"
brand: "uni-ball"
price: "€ 24.84"
currency: EUR
in_stock: true
reviews_count: 13
category: "Uni Ball"
url: https://www.desertcart.pt/products/1482177-signo-dx-um-151-gel-ink-pen-0-38-mm
store_origin: PT
region: Portugal
---

# durable, heavy-duty tip smooth black gel ink 0.38mm ultra-fine tip Signo Dx Um-151 Gel Ink Pen - 0.38 Mm - 10 Pcs - Black - Uni Mitsubishi Pencil

**Brand:** uni-ball
**Price:** € 24.84
**Availability:** ✅ In Stock

## Summary

> 🖋️ Write sharp, write smart — the pen that pros swear by!

## Quick Answers

- **What is this?** Signo Dx Um-151 Gel Ink Pen - 0.38 Mm - 10 Pcs - Black - Uni Mitsubishi Pencil by uni-ball
- **How much does it cost?** € 24.84 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pt](https://www.desertcart.pt/products/1482177-signo-dx-um-151-gel-ink-pen-0-38-mm)

## 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

- • **Built to Last:** Reinforced barrel and tip withstand heavy-handed use without compromising performance.
- • **Artist & Writer Favorite:** Highly sought-after by creatives and professionals craving reliability and finesse.
- • **Exclusive & Hard to Find:** Join the elite circle of Uni Signo DX users in the US—don’t miss out on this cult classic.
- • **Ink That Flows Like Silk:** Smooth, consistent black gel ink ensures no smudging or skipping—write with confidence.
- • **Precision in Every Stroke:** Ultra-fine 0.38mm tip delivers crisp, clean lines perfect for detailed writing and sketching.

## Overview

The Uni-ball Signo DX UM-151 is a premium 0.38mm gel ink pen known for its ultra-fine precision, durable tip, and smooth black ink flow. Favored by artists and writers for its reliability and clean lines, this pack of 10 pens offers a sturdy build that withstands heavy use. Rare and highly coveted in the US market, it’s a must-have for professionals who demand excellence in every stroke.

## Description

The Uni Signo DX (UM-151) is claimed by some to be even better than the Pilot Hi-Tec-C! It comes in 0.38mm tip size. The barrel and tip are a bit sturdier than the Hi-Tec-C, which might explain why converts love them. Users can enjoy clean and even flowing lines, and the strong tips can withstand all the heavy handed writing you can offer. Like all our other pens, the Uni Signo DX is highly sought after by artists and writers alike, but difficult to find in the US.

Review: Love these pens, coworkers are hooked! - I’ve been a fan of these pens for awhile, perfect for those who are writing small. My coworkers have stolen some from me overtime and went on to purchase their own haha. Definitely repurchasing!
Review: I found my true love - After receiving this pen from the box and test it out, I was very impressed with the tip and the comfort, I didn't really notice about the thickness because I usually use gentle flicks to add details. Pen quality is average like the plastic feels strong. I recommend for people who likes to sketch and write (it doesn't smear)

## Features

- Uni-Ball Signo DX 0.38 by 151 Gel Ink Pen, Pack of 10 (Black)
- Users can enjoy clean and even flowing lines, and the strong tips can withstand all the heavy handed writing you can offer.
- The Uni Signo DX is highly sought after by artists and writers alike, but difficult to find in the US.
- The Uni Signo DX (UM-151) is claimed by some to be even better than the Pilot Hi-Tec-C! It comes in 0.38mm tip size.
- The barrel and tip are a bit sturdier than the Hi-Tec-C, which might explain why converts love them. Users can enjoy clean and even flowing lines, and the strong tips can withstand all the heavy handed writing you can offer.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B003FXWGWE |
| Best Sellers Rank | #10,271 in Office Products ( See Top 100 in Office Products ) #346 in Gel Ink Pens |
| Brand | Uni-Ball |
| Closure | Click-Off Cap |
| Color | Black |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,532) |
| Date First Available | April 7, 2010 |
| Grip Type | Contoured |
| Ink Color | Black |
| Is Discontinued By Manufacturer | No |
| Item Weight | 3.2 ounces |
| Item model number | UM151.24 |
| Line Size | 0.38mm |
| Manufacturer | Uni-Ball |
| Manufacturer Part Number | 暂无 |
| Material Type | Plastic |
| Number of Items | 1 |
| Point Type | Fine |
| Product Dimensions | 5 x 2 x 4 inches |
| Size | 10 Count (Pack of 1) |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** Uni-Ball
- **Color:** Black
- **Ink Color:** Black
- **Writing Instrument Form:** Technical Pen

## Images

![Signo Dx Um-151 Gel Ink Pen - 0.38 Mm - 10 Pcs - Black - Uni Mitsubishi Pencil - Image 1](https://m.media-amazon.com/images/I/61gJkqd+8aL.jpg)

## Questions & Answers

**Q: Is this pen retractable?**
A: Not retractable but it is the best pen I have ever used, no ink globs yet and I have gone through two packs so far.  The pen has a removable cap with an atypical clasp.

**Q: Is the pen with the label "umr-1" and the pen with the label "um-151" the exact same pen?**
A: The pens I purchased carry both labels on them.  I am not aware of pens with just one of those two label references.

**Q: Do these ship directly from Japan?**
A: Yes

**Q: Is this fake? Because I have the original one from a japanese store it doesnt have the chinese symbol on the cap.**
A: Not sure what you mean by "fake".  I've purchased and repurchased these wonderful pens through Amazon and this dealer, no problems.  Mine show Japanese symbols on the pen shaft, not the cap.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Love these pens, coworkers are hooked!
*by K***N on December 27, 2025*

I’ve been a fan of these pens for awhile, perfect for those who are writing small. My coworkers have stolen some from me overtime and went on to purchase their own haha. Definitely repurchasing!

### ⭐⭐⭐⭐⭐ I found my true love
*by B***Z on December 19, 2025*

After receiving this pen from the box and test it out, I was very impressed with the tip and the comfort, I didn't really notice about the thickness because I usually use gentle flicks to add details. Pen quality is average like the plastic feels strong. I recommend for people who likes to sketch and write (it doesn't smear)

### ⭐⭐⭐⭐⭐ Perfect pens!!
*by S***1 on November 1, 2025*

LOVE these pens!! I use them daily - they write so smoothly and the ink is so pigmented. I use them at work, and in my daily journal writing.

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- uni-ball Signo Dx Um-151 Gel Ink Pen - 0.38 Mm - 10 Pcs - Black - Uni Mitsubishi Pencil
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*Product available on Desertcart Portugal*
*Store origin: PT*
*Last updated: 2026-01-29*