---
product_id: 454511779
title: "SIGNO UM-100 Gel Pen (Blue Ink, Pack of 6)"
brand: "uni-ball"
price: "€ 10.75"
currency: EUR
in_stock: true
reviews_count: 5
category: "Uni Ball"
url: https://www.desertcart.ie/products/454511779-signo-um-100-gel-pen-blue-ink-pack-of-6
store_origin: IE
region: Ireland
---

# ultra quick-drying ink vibrant blue ink pack of 6 0.7mm fine tip for precision SIGNO UM-100 Gel Pen (Blue Ink, Pack of 6)

**Brand:** uni-ball
**Price:** € 10.75
**Availability:** ✅ In Stock

## Summary

> 🖋️ Write sharp, dry fast, and stay ahead of the curve!

## Quick Answers

- **What is this?** SIGNO UM-100 Gel Pen (Blue Ink, Pack of 6) by uni-ball
- **How much does it cost?** € 10.75 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/454511779-signo-um-100-gel-pen-blue-ink-pack-of-6)

## 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

- • **Effortless Flow:** Smooth gel ink ensures a delightful writing experience without skips
- • **No More Smudges:** Extremely quick-drying ink keeps your work flawless and professional
- • **Ready for Any Task:** Pack of 6 pens means you’re always prepared, whether at work or on the go
- • **Sleek Transparency:** Transparent barrel lets you track ink levels with style
- • **Precision Meets Performance:** 0.7mm tungsten carbide tip delivers crisp, clean lines every time

## Overview

The uni-ball SIGNO UM-100 Gel Pen features a durable 0.7mm tungsten carbide tip and ultra quick-drying blue gel ink housed in a transparent plastic barrel. Sold in a convenient pack of 6, it offers a smooth, smudge-free writing experience ideal for professionals who demand precision and reliability.

## Description

Brand: Uniball Material: Stainless Steel Target gender: unisex Closure Type: Click-Off Cap Special feature: Quick Drying

Review: Phenomenal
Review: Great pen

## Features

- Stainless Steel Tip 07mm tungsten carbide ball PlasticAS barrel Body Colour Transparent Blue Ink Pack of 6
- Ink Color Blue
- Pack of 6
- Extremely Quick drying
- Smooth and delightful writing experience

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07STJBSHF |
| Best Sellers Rank | #30,007 in Office Products ( See Top 100 in Office Products ) #98 in Rollerball Pens |
| Brand | uni-ball |
| Closure | Click-Off Cap |
| Color | Blue |
| Customer Reviews | 4.4 4.4 out of 5 stars (171) |
| Date First Available | 2 March 2022 |
| Grip Type | Smooth |
| Ink Color | Blue |
| Item Weight | 90 g |
| Line Size | 0_7mm |
| Manufacturer | MITSUBISHI PENCIL CO. |
| Manufacturer Part Number | UNPUM100BL6 |
| Material Type | Plastic, Stainless Steel |
| Model number | UNPUM100BL6 |
| Point Type | Fine |
| Product Dimensions | 25 x 7 x 4 cm; 90 g |

## Product Details

- **Age range (description):** Adult
- **Brand:** uni-ball
- **Colour:** Blue
- **Ink colour:** Blue
- **Writing instrument form:** Roller Ball Pen

## Images

![SIGNO UM-100 Gel Pen (Blue Ink, Pack of 6) - Image 1](https://m.media-amazon.com/images/I/81EQyNqXzHL.jpg)

## Available Options

This product comes in different **Unit Count** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by S***R on 6 January 2026*

Phenomenal

### ⭐⭐⭐⭐⭐ Review
*by V***T on 26 September 2025*

Great pen

### ⭐⭐ Review
*by A***A on 13 December 2025*

First of all, they are expensive. Yet we trusted brand and tried expecting better performance. 1. The ink exhausted too fast (20-25 pages of a register, that's all). 2. Few pens exhausted half way only and stopped writing in between. So, overall, not recommended.

## 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)

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**Shop now:** [https://www.desertcart.ie/products/454511779-signo-um-100-gel-pen-blue-ink-pack-of-6](https://www.desertcart.ie/products/454511779-signo-um-100-gel-pen-blue-ink-pack-of-6)

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-24*