---
product_id: 683185387
title: "Signo Um-151 Gel Ink Pen - 0.38 Mm - 10 Set (Black)"
brand: "uni-ball"
price: "₨20604"
currency: LKR
in_stock: true
url: https://www.desertcart.lk/products/683185387-signo-um-151-gel-ink-pen-0-38-mm-10
store_origin: LK
region: Sri Lanka
---

# Set of 10 pens for nonstop writing Deep black gel ink for crisp clarity 0.38mm ultra-fine precision Signo Um-151 Gel Ink Pen - 0.38 Mm - 10 Set (Black)

**Brand:** uni-ball
**Price:** ₨20604
**Availability:** ✅ In Stock

## Summary

> 🖊️ Write sharp, write smart—own every line with Uni-ball Signo!

## Quick Answers

- **What is this?** Signo Um-151 Gel Ink Pen - 0.38 Mm - 10 Set (Black) by uni-ball
- **How much does it cost?** ₨20604 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.lk](https://www.desertcart.lk/products/683185387-signo-um-151-gel-ink-pen-0-38-mm-10)

## 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

- • **10-Pen Power Pack:** Never run out mid-project—stock up with a sleek set designed for relentless productivity.
- • **Smooth Gel Ink Flow:** Enjoy effortless, skip-free writing that keeps your ideas flowing seamlessly.
- • **Twist Closure Design:** Secure your pen with a satisfying twist—no caps to lose, just grab and go.
- • **Ultra-Fine 0.38mm Tip:** Experience razor-sharp lines that elevate your notes and sketches with unmatched precision.
- • **Trusted Uni-ball Quality:** Crafted in the USA by a brand synonymous with reliability and professional-grade performance.

## Overview

The Uni-ball Signo UM-151 Gel Ink Pen features an ultra-fine 0.38mm tip delivering precise, clean lines in rich black gel ink. This 10-pack set ensures you stay equipped for all your writing needs, with a convenient twist closure and trusted Uni-ball craftsmanship made in the USA.

## Description

Signo Um-151 Gel Ink Pen - 0.38 Mm - 10 Set (Black)

## Features

- Uni Mitsubishi Pencil Company Uni-ball Signo Dx 0.38 Mm Um-151 Gel Ink Pen
- It comes with 10 Pieces
- It comes with Black

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Uni-ball |
| Model Number | ハコUM151.24 |
| Colour | black |
| Closure | Twist |
| Material | Plastic |
| Number of Items | 10 |
| Point Type | Fine |
| Line Size | 0.38 Millimeters |
| Ink Colour | Black |
| Manufacturer Part Number | ハコUM151.24 |
| Manufacturer | Uni-ball |
| Country of Origin | USA |

## Product Details

- **Writing instrument form:** Roller Ball Pen
- **Colour:** black
- **Ink Colour:** Black
- **Age Range (Description):** Adult
- **Material:** Plastic

## Images

![Signo Um-151 Gel Ink Pen - 0.38 Mm - 10 Set (Black) - Image 1](https://images-na.ssl-images-amazon.com/images/G/01/x-locale/common/grey-pixel.gif)

## 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.

## 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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**Shop now:** [https://www.desertcart.lk/products/683185387-signo-um-151-gel-ink-pen-0-38-mm-10](https://www.desertcart.lk/products/683185387-signo-um-151-gel-ink-pen-0-38-mm-10)

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*Product available on Desertcart Sri Lanka*
*Store origin: LK*
*Last updated: 2026-01-29*