---
product_id: 276526578
title: "Mitsubishi Uni-Ball Signo Umn-307 Gel Ink Rollerball Retractable Pen Blue Liquid Ink Colour X 1 Single Pen"
brand: "uni-ball"
price: "20 Lei"
currency: RON
in_stock: true
url: https://www.desertcart.ro/products/276526578-mitsubishi-uni-ball-signo-umn-307-gel-ink-rollerball-retractable
store_origin: RO
region: Romania
---

# waterproof ink fraud resistant 0.7mm precision Mitsubishi Uni-Ball Signo Umn-307 Gel Ink Rollerball Retractable Pen Blue Liquid Ink Colour X 1 Single Pen

**Brand:** uni-ball
**Price:** 20 Lei
**Availability:** ✅ In Stock

## Summary

> Write Your Legacy ✍️

## Quick Answers

- **What is this?** Mitsubishi 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?** 20 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/276526578-mitsubishi-uni-ball-signo-umn-307-gel-ink-rollerball-retractable)

## 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

- • **Durable Ink:** Uni Super Ink is permanent and resistant to water and fading.
- • **Comfortable Grip:** Ergonomically designed rubber grip for extended writing sessions.
- • **Leak-Free Design:** Retractable mechanism ensures your pen is always ready to go, no leaks!
- • **Perfect for Professionals:** Ideal for legal documents, notes, and creative projects alike.
- • **Smooth Writing Experience:** Experience effortless writing with the advanced gel ink technology.

## Overview

The Mitsubishi Uni-Ball Signo UMN-307 is a premium retractable gel ink rollerball pen designed for professionals. With its waterproof and fraud-resistant uni Super Ink, this pen ensures your writing remains intact and secure. The contoured rubber grip provides comfort for long writing sessions, while the 0.7mm nib delivers precision and clarity. Perfect for everything from legal documents to creative scrapbooking, this pen is a must-have for anyone who values quality and reliability.

## Description

Mitsubishi Uni-Ball Signo Umn-307 Gel Ink Rollerball Retractable Pen Blue Liquid Ink Colour X 1 Single Pen

## 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 |
|---------------|-------|
| Manufacturer | Mitsubishi |
| Brand | uni-ball |
| Model number | UMN-307 |
| Product Dimensions | 14.2 x 1.5 x 1 cm; 10 g |
| Color | blue |
| Closure | Retractable |
| Grip Type | Contoured |
| Material Type | Rubber |
| Number of Items | 1 |
| Size | 1 count (Pack of 1) |
| Point Type | ballpoint |
| Line Size | 0.7mm |
| Ink Color | Blue |
| Manufacturer Part Number | UMN-307 |
| Item Weight | 10 g |

## Product Details

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

## Images

![Mitsubishi 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)

## Frequently Bought Together

- uni-ball signo UMN-307 gel ink rollerball retractable pen BLUE liquid ink colour x 1 single pen
- Uni-Ball 40108 207 Premier Retractable Gel Rollerball Pen, Medium Point, Black Ink, 1 Count
- Uni Alpha-Gel Jetstream 0.7 mm Ball Point Pen, Black Body, Black Ink (SXN1000071P24)

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**Shop now:** [https://www.desertcart.ro/products/276526578-mitsubishi-uni-ball-signo-umn-307-gel-ink-rollerball-retractable](https://www.desertcart.ro/products/276526578-mitsubishi-uni-ball-signo-umn-307-gel-ink-rollerball-retractable)

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-01-24*