---
product_id: 276324053
title: "Signo 307 Retractable Gel Ink Pen, Ultra Micro Point 0.38mm, Black Ink, UMN-307-38, Value Set"
brand: "uni-ball"
price: "$23.64"
currency: USD
in_stock: true
category: "Uni Ball"
url: https://www.desertcart.us/products/276324053-signo-307-retractable-gel-ink-pen-ultra-micro-point-0
store_origin: US
region: United States of America
---

# Retractable design for on-the-go convenience Smooth black gel ink for bold, consistent lines 0.38mm ultra micro point for precision Signo 307 Retractable Gel Ink Pen, Ultra Micro Point 0.38mm, Black Ink, UMN-307-38, Value Set

**Brand:** uni-ball
**Price:** $23.64
**Availability:** ✅ In Stock

## Summary

> 🖊️ Write sharp, write smart—make every word count!

## Quick Answers

- **What is this?** Signo 307 Retractable Gel Ink Pen, Ultra Micro Point 0.38mm, Black Ink, UMN-307-38, Value Set by uni-ball
- **How much does it cost?** $23.64 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/276324053-signo-307-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

- • **Value Set of 5:** Stock up and never run out—ideal for your desk, bag, or sharing with your team to stay sharp together.
- • **Bold Black Gel Ink:** Vibrant, water-based gel ink ensures smooth, smudge-resistant writing that stands out in meetings and memos.
- • **Ergonomic Comfort Grip:** Contoured body supports long writing sessions without fatigue—because your ideas deserve comfort.
- • **Precision at Your Fingertips:** Ultra micro 0.38mm tip delivers crisp, clean lines for flawless note-taking and detailed work.
- • **Effortless Retractable Design:** Click and write—no caps to lose, perfect for busy professionals always on the move.

## Overview

The Uni-ball Signo 307 is a retractable gel ink pen featuring an ultra-fine 0.38mm micro point tip for precise, smooth writing. Its bold black water-based gel ink offers consistent, smudge-resistant lines, while the ergonomic contoured grip ensures comfort during extended use. Sold in a convenient value set of five, this pen is perfect for professionals seeking reliable, stylish writing tools that keep pace with their dynamic work life.

## Description

Uni-ball Signo 307 Retractable Gel Ink Pen, Micro Point 0.38mm, Black Ink, UMN-307-38, Value Set of 5

## Features

- Uni ball Signo 307 Retractable Gel Ink Pen, UMN 307 38
- Smooth and easy to write
- Micro Point 0.38mm
- Black Ink

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B06Y3K3RPC |
| Additional Features | Retractable |
| Age Range Description | Kid, Teen, Adult |
| Animal Theme | no animal theme |
| Best Sellers Rank | #203,325 in Office Products ( See Top 100 in Office Products ) #3,919 in Gel Ink Rollerball Pens |
| Body Shape | Round |
| Brand Name | uni-ball |
| Closure Type | Retractable |
| Color | white |
| Customer Reviews | 4.7 4.7 out of 5 stars (1,165) |
| Drill Point | Micro |
| Grip Type | Contoured |
| Hand Orientation | Ambidextrous |
| Included Components | 5 x Uni-ball Signo 307 Retractable Gel Ink Pen |
| Ink Base | Water |
| Ink Color | Black |
| Item Diameter | 0.38 Millimeters |
| Item Dimensions | 13.8 x 6 x 1.6 centimeters |
| Item Weight | 51 Grams |
| Line Size | 0.38 Millimeters |
| Manufacturer | Uni-ball |
| Material Type | Plastic |
| Model Name | 307 |
| Model Number | SG_B06Y3K3RPC_US |
| Recommended Uses For Product | Writing |
| Style | Refillable |
| UPC | 191308002831 |
| Writing Instrument Form | Roller Ball Pen |
| Writing Technique | gel ink |

## Product Details

- **Age range (description):** Kid, Teen, Adult
- **Brand:** uni-ball
- **Colour:** white
- **Ink colour:** Black
- **Writing instrument form:** Roller Ball Pen

## Images

![Signo 307 Retractable Gel Ink Pen, Ultra Micro Point 0.38mm, Black Ink, UMN-307-38, Value Set - Image 1](https://m.media-amazon.com/images/I/51wb9XMnxcL.jpg)

## Frequently Bought Together

- Uni-ball Signo 307 Retractable Gel Ink Pen, Ultra Micro Point 0.38mm, Black Ink, UMN-307-38, Value Set
- Uni-Ball Signo 307 Retractable Gel Ink Pen, Ultra Micro Point 0.38mm, Blue Ink, UMN-307-38, Value Set of 5
- Uni Ball Jetstream Extra Fine & Micro Point Click Retractable Roller Ball Pens Rubber Grip Type 0.38mm - Black Ink - 5 Body Color Value Set

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**Shop now:** [https://www.desertcart.us/products/276324053-signo-307-retractable-gel-ink-pen-ultra-micro-point-0](https://www.desertcart.us/products/276324053-signo-307-retractable-gel-ink-pen-ultra-micro-point-0)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-10-05*