---
product_id: 384876442
title: "uni-ball signo UMN-307 gel ink rollerball retractable pen BLUE liquid ink colour x 1 single pen"
brand: "uni-ball"
price: "FREE"
currency: TND
in_stock: false
url: https://www.desertcart.tn/products/384876442-uni-ball-signo-umn-307-gel-ink-rollerball-retractable-pen
store_origin: TN
region: Tunisia
---

# waterproof & quick-dry ink 0.7mm precision nib fraud-resistant permanent ink uni-ball signo UMN-307 gel ink rollerball retractable pen BLUE liquid ink colour x 1 single pen

**Brand:** uni-ball
**Price:** FREE
**Availability:** ❌ Out of Stock

## Summary

> 🖋️ Write Boldly, Last Endlessly

## Quick Answers

- **What is this?** uni-ball signo UMN-307 gel ink rollerball retractable pen BLUE liquid ink colour x 1 single pen by uni-ball
- **How much does it cost?** FREE with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/384876442-uni-ball-signo-umn-307-gel-ink-rollerball-retractable-pen)

## 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

- • **Retractable & Ready:** Leak-free retractable design keeps your pen protected and always ready to write
- • **Smooth Flow, No Smudge:** Gel ink technology ensures silky smooth writing with no stains or smears
- • **Precision Meets Comfort:** Ergonomic rubber grip for fatigue-free writing marathons
- • **Ink That Stands the Test:** Uni Super Ink is waterproof, lightfast, and fraud-resistant—perfect for legal docs or creative projects
- • **Trusted by Professionals:** Crafted by Mitsubishi, a brand synonymous with quality and reliability

## Overview

The uni-ball Signo UMN-307 is a retractable gel ink rollerball pen featuring a 0.7mm nib and ergonomic rubber grip. Its Uni Super Ink is waterproof, quick-drying, and fraud-resistant, making it ideal for professional use including legal documents and scrapbooking. Designed for smooth, smudge-free writing, this pen combines comfort and durability in a sleek, reliable package.

## Description

Uni-Ball Signo Gel Ink Rollerball Pen umn-307, BlueLine width: 0.7 mm, ergonomic rubber grip, withClip, Non shrinking and lightfast ink, writingSoft and cosy and no stains(umn307 B)

## Features

- Price is for 1 single retractable pen
- The uni-ball Signo 307 Rollerball is a gel pen that is retractable which prevents the nib from drying out and allows leak-free storage
- The ink it uses is uni Super Ink that makes it waterproof, fraud resistant and permanent perfect for legal documents or for scrapbooking
- It’s rubberised grip makes it comfortable to use for long periods, and it’s newly developed nib makes it perfect for long essays
- light proof / water proof / quick drying

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B014SFJOWC |
| Additional Features | Washable |
| Age Range Description | Adult |
| Best Sellers Rank | #1,158,284 in Office Products ( See Top 100 in Office Products ) #11,410 in Gel Ink Pens |
| Body Shape | Rectangular |
| Brand Name | Uni-Ball |
| Closure Type | Retractable |
| Color | Blue |
| Customer Reviews | 4.2 4.2 out of 5 stars (84) |
| Drill Point | Medium |
| Global Trade Identification Number | 04902778190364 |
| Grip Type | ergonomic |
| Hand Orientation | Ambidextrous |
| Hardness | F |
| Ink Base | Water |
| Ink Color | Blue |
| Item Dimensions | 5.59 x 0.59 x 0.39 inches |
| Item Weight | 0.01 kg |
| Line Size | 0.7mm |
| Manufacturer | Mitsubishi |
| Material Type | Rubber |
| Model Name | UMN 307 |
| Model Number | UMN-307 |
| Recommended Uses For Product | Writing |
| Unit Count | 1 Count |
| Writing Instrument Form | Roller Ball Pen |
| Writing Technique | rollerball |

## Product Details

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

## Images

![uni-ball signo UMN-307 gel ink rollerball retractable pen BLUE liquid ink colour x 1 single pen - Image 1](https://m.media-amazon.com/images/I/41YAx1KQ4ML.jpg)

## Available Options

This product comes in different **Number Of Items** options.

## Frequently Bought Together

- uni-ball signo UMN-307 gel ink rollerball retractable pen BLUE liquid ink colour x 1 single pen
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**Shop now:** [https://www.desertcart.tn/products/384876442-uni-ball-signo-umn-307-gel-ink-rollerball-retractable-pen](https://www.desertcart.tn/products/384876442-uni-ball-signo-umn-307-gel-ink-rollerball-retractable-pen)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-10-18*