---
product_id: 282282135
title: "Signo 307 Retractable Gel Ink Pen, Ultra Micro Point 0.38mm, Blue Ink, UMN-307-38, Value Set of 5"
brand: "uni-ball"
price: "$31.13"
currency: USD
in_stock: true
category: "Uni Ball"
url: https://www.desertcart.us/products/282282135-signo-307-retractable-gel-ink-pen-ultra-micro-point-0
store_origin: US
region: United States of America
---

# smooth, smear-resistant gel ink retractable, refillable design 0.38mm ultra micro point Signo 307 Retractable Gel Ink Pen, Ultra Micro Point 0.38mm, Blue Ink, UMN-307-38, Value Set of 5

**Brand:** uni-ball
**Price:** $31.13
**Availability:** ✅ In Stock

## Summary

> 🖋️ Write sharp, write smart—because your ideas deserve precision.

## Quick Answers

- **What is this?** Signo 307 Retractable Gel Ink Pen, Ultra Micro Point 0.38mm, Blue Ink, UMN-307-38, Value Set of 5 by uni-ball
- **How much does it cost?** $31.13 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/282282135-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

- • **Effortless Control:** Textured rubber grip ensures comfort and stability during long writing sessions.
- • **Ready When You Are:** Convenient retractable mechanism means no caps to lose—always ready to write.
- • **Value Pack Advantage:** Set of 5 pens keeps your desk stocked and your ideas flowing without interruption.
- • **Smudge-Free Confidence:** Advanced gel ink formula dries quickly to prevent smearing—even when writing fast.
- • **Precision in Every Stroke:** Ultra micro 0.38mm tip delivers crisp, fine lines for flawless notes and sketches.

## Overview

The Uni-ball Signo 307 is a professional-grade retractable gel pen featuring an ultra-fine 0.38mm tip for precise writing. Its quick-drying, smear-resistant blue gel ink ensures clean, crisp lines even during fast note-taking. Designed with a textured rubber grip for ergonomic comfort and a convenient retractable mechanism, this value set of 5 pens is perfect for professionals who demand reliability and style in their everyday writing tools.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B06Y3WFXGD |
| Additional Features | Retractable |
| Age Range Description | Adult |
| Age range (description) | Adult |
| Animal Theme | no animal theme |
| Best Sellers Rank | #99,754 in Office Products ( See Top 100 in Office Products ) #2,133 in Gel Ink Rollerball Pens |
| Body Shape | Round |
| Brand | uni-ball |
| Brand Name | uni-ball |
| Closure Type | Retractable |
| Color | Blue |
| Colour | Blue |
| Customer Reviews | 4.6 out of 5 stars 366 Reviews |
| Drill Point | Ultra Micro |
| Grip Type | Textured rubber |
| Hand Orientation | Ambidextrous |
| Ink Base | Water |
| Ink Color | Blue |
| Ink colour | Blue |
| Item Diameter | 0.38 Millimeters |
| Item Dimensions | 13.8 x 6 x 1.6 centimeters |
| Item Weight | 0.02 Kilograms |
| Line Size | 0_3mm |
| Manufacturer | Uni-ball |
| Material | Rubber Plastic |
| Material Type | Rubber Plastic |
| Model Name | 307 |
| Model Number | SG_B06Y3WFXGD_US |
| Recommended Uses For Product | Writing |
| Style | Refillable |
| UPC | 191308002824 |
| Writing Instrument Form | Ballpoint Pen |
| Writing Technique | gel ink |
| Writing instrument form | Ballpoint Pen |

## Product Details

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

## Images

![Signo 307 Retractable Gel Ink Pen, Ultra Micro Point 0.38mm, Blue Ink, UMN-307-38, Value Set of 5 - Image 1](https://m.media-amazon.com/images/I/41s2wVFZTOL.jpg)

## Questions & Answers

**Q: Are these refillable?**
A: Yes. They are refillable. For blue ink look for UMR83E.33.

## Frequently Bought Together

- Uni-Ball Signo 307 Retractable Gel Ink Pen, Ultra Micro Point 0.38mm, Blue Ink, UMN-307-38, Value Set of 5
- Uni-ball Signo 307 Retractable Gel Ink Pen, Ultra Micro Point 0.38mm, Black Ink, UMN-307-38, Value Set
- Uniball Gel Pen 12 Pack, 0.38mm Ultra Micro Black Ink, Smooth Writing Office Supplies

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**Shop now:** [https://www.desertcart.us/products/282282135-signo-307-retractable-gel-ink-pen-ultra-micro-point-0](https://www.desertcart.us/products/282282135-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: 2026-09-17*