---
product_id: 23299432
title: "Signo UM-100 0.5mm Gel Ink Rollerball Pen, Red (10 pcs Box)"
brand: "uni-ball"
price: "€ 29.91"
currency: EUR
in_stock: true
reviews_count: 6
category: "Uni Ball"
url: https://www.desertcart.hr/products/23299432-signo-um-100-0-5mm-gel-ink-rollerball-pen-red
store_origin: HR
region: Croatia
---

# Signo UM-100 0.5mm Gel Ink Rollerball Pen, Red (10 pcs Box)

**Brand:** uni-ball
**Price:** € 29.91
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Signo UM-100 0.5mm Gel Ink Rollerball Pen, Red (10 pcs Box) by uni-ball
- **How much does it cost?** € 29.91 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/23299432-signo-um-100-0-5mm-gel-ink-rollerball-pen-red)

## 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

## Description

Get all the colors for the popular Uni UM-100 pen line! Known for its smooth flowing ink and its writing performance, the UM-100 pens are top notch pens hidden in an economical body form.

Review: My new favorite pen… - Comfortable in hand and I really like the 0.5 micro point. With the red ink I will take off half a star because the red color is pretty light. I basically use the red pens to highlight or circle something I want to stand out so it is okay but not great. Other ink colors offered are blue, black, and blue/black which is my preference.
Review: Unhappy - Pens skips. Don’t waste your $

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00E4QTP98 |
| Best Sellers Rank | #244,683 in Office Products ( See Top 100 in Office Products ) #3,852 in Gel Ink Pens |
| Brand | Uni-Ball |
| Closure | Snap |
| Color | Red |
| Customer Reviews | 3.8 3.8 out of 5 stars (23) |
| Date First Available | July 24, 2013 |
| Grip Type | Smooth |
| Ink Color | Red |
| Is Discontinued By Manufacturer | No |
| Item Weight | 4 ounces |
| Item model number | BC30946 |
| Line Size | 0.5 Millimeters |
| Manufacturer | Uni-ball |
| Manufacturer Part Number | 1 |
| Material Type | gel |
| Number of Items | 10 |
| Package Dimensions | 6.3 x 2.5 x 1 inches |
| Point Type | ball tip |
| Size | 1 Count (Pack of 10) |

## Product Details

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

## Images

![Signo UM-100 0.5mm Gel Ink Rollerball Pen, Red (10 pcs Box) - Image 1](https://m.media-amazon.com/images/I/61he67UTHUL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ My new favorite pen…
*by M***7 on November 19, 2024*

Comfortable in hand and I really like the 0.5 micro point. With the red ink I will take off half a star because the red color is pretty light. I basically use the red pens to highlight or circle something I want to stand out so it is okay but not great. Other ink colors offered are blue, black, and blue/black which is my preference.

### ⭐ Unhappy
*by W***N on March 26, 2025*

Pens skips. Don’t waste your $

### ⭐⭐⭐⭐ brightness of ink
*by P***F on July 13, 2019*

I have only tried one pen. The ink seemed to lose its vividness after a few minutes, as though it was running out of ink. The barrel is shorter than anticipated.

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**Shop now:** [https://www.desertcart.hr/products/23299432-signo-um-100-0-5mm-gel-ink-rollerball-pen-red](https://www.desertcart.hr/products/23299432-signo-um-100-0-5mm-gel-ink-rollerball-pen-red)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-02-22*