---
product_id: 43706154
title: "Signo RT1 Retractable Gel Ink Pen, Ultra Micro Point 0.28mm, Rubber Grip, Black Ink, UMN-155-28, Value Set of 5"
brand: "uni-ball"
price: "2214 kr"
currency: ISK
in_stock: true
category: "Uni Ball"
url: https://www.desertcart.is/products/43706154-signo-rt1-retractable-gel-ink-pen-ultra-micro-point-0
store_origin: IS
region: Iceland
---

# Ergonomic Rubber Grip Water & Light Resistant Ink 0.28mm Ultra Micro Point Signo RT1 Retractable Gel Ink Pen, Ultra Micro Point 0.28mm, Rubber Grip, Black Ink, UMN-155-28, Value Set of 5

**Brand:** uni-ball
**Price:** 2214 kr
**Availability:** ✅ In Stock

## Summary

> 🖋️ Write sharp, write smart — the pen that means business.

## Quick Answers

- **What is this?** Signo RT1 Retractable Gel Ink Pen, Ultra Micro Point 0.28mm, Rubber Grip, Black Ink, UMN-155-28, Value Set of 5 by uni-ball
- **How much does it cost?** 2214 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/43706154-signo-rt1-retractable-gel-ink-pen-ultra-micro-point-0)

## 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

- • **Ready When You Are:** Retractable design means no caps to lose and instant ink flow, perfect for fast-paced meetings and brainstorming.
- • **Comfort Meets Control:** Soft rubber grip designed for extended writing sessions without fatigue—because your ideas deserve comfort.
- • **Smudge-Proof Confidence:** Water and light-resistant gel ink ensures your work stays flawless and fade-free, even under pressure.
- • **Precision in Every Stroke:** Ultra micro 0.28mm tip delivers razor-sharp, professional lines that make your notes and signatures stand out.
- • **Value Pack for the Go-Getter:** Set of 5 pens keeps you stocked at home, office, or on the move—never run out of your signature style.

## Overview

The Uni-ball Signo RT1 is a retractable gel ink pen featuring an ultra micro 0.28mm tip for precise writing. Its water and light-resistant black ink ensures durability and clarity, while the ergonomic rubber grip provides comfort for long use. Sold in a convenient value pack of 5, this pen is ideal for professionals and students seeking reliability and style in their everyday writing tools.

## Description

Uni-ball Signo RT1 Retractable Gel Ink Pen, Ultra Micro Point 0.28mm, Black Ink, UMN-155-28, Value Set of 5

## Features

- Uni-ball Signo RT1 Retractable Gel Ink Pen, UMN-155-28
- The diameter of a lead : Ultra Micro Point 0.28mm, Color : Black Ink
- Because there is no corner at the pen tip, it is not caught on paper, Smooth ink is also excellent in water resistance and light resistance
- Value Pack of 5

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B06Y3S2XKL |
| Additional Features | Retractable |
| Age Range (Description) | Teen |
| Age Range Description | Teen |
| Best Sellers Rank | #9,893 in Office Products ( See Top 100 in Office Products ) #285 in Gel Ink Pens |
| Body Shape | Round |
| Brand | Uni-Ball |
| Brand Name | Uni-Ball |
| Closure Type | Retractable |
| Color | Black |
| Customer Reviews | 4.6 out of 5 stars 1,860 Reviews |
| Drill Point | Ultra Micro |
| Grip Type | rubber |
| Hand Orientation | Ambidextrous |
| Ink Base | Water |
| Ink Color | Black |
| Item Dimensions | 5.91 x 2.17 x 0.79 inches |
| Item Weight | 0.05 kg |
| Line Size | 0.28 millimeters |
| Manufacturer | Uni-ball |
| Material | Rubber |
| Material Type | Rubber |
| Model Number | SG_B06Y3S2XKL_US |
| Recommended Uses For Product | Home, School |
| UPC | 191308002770 |
| Unit Count | 5 Count |
| Water Resistance Level | Water Resistant |
| Writing Instrument Form | Roller Ball Pen |
| Writing Technique | gel ink |

## Product Details

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

## Images

![Signo RT1 Retractable Gel Ink Pen, Ultra Micro Point 0.28mm, Rubber Grip, Black Ink, UMN-155-28, Value Set of 5 - Image 1](https://m.media-amazon.com/images/I/41G6JyrC6SL.jpg)

## Frequently Bought Together

- Uni-ball Signo RT1 Retractable Gel Ink Pen, Ultra Micro Point 0.28mm, Rubber Grip, Black Ink, UMN-155-28, Value Set of 5
- UPENOTE Gel Pens 0.28mm Extra Fine Point Pen, Black Ink, Ball Point Pen for School, Office, Stationery Supplies 6 Packs
- Uni-ball Signo RT1 Retractable Gel Ink Pen, Ultra Micro Point 0.28mm, Rubber Grip, UMN-155-28, 10 Color Value Set

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.is/products/43706154-signo-rt1-retractable-gel-ink-pen-ultra-micro-point-0](https://www.desertcart.is/products/43706154-signo-rt1-retractable-gel-ink-pen-ultra-micro-point-0)

---

*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-08-18*