---
product_id: 725777064
title: "Mitsubishi Pencil Uni-Ball One UMNS388C Gel Ballpoint Pens, 0.01 inches (0.38 mm), 8-Color Set"
brand: "三菱鉛筆(mitsubishi pencil)"
price: "A$13"
currency: AUD
in_stock: true
reviews_count: 8
category: "三菱鉛筆(Mitsubishi Pencil)"
url: https://www.desertcart.com.au/products/725777064-mitsubishi-pencil-uni-ball-one-umns388c-gel-ballpoint-pens-0
store_origin: AU
region: Australia
---

# Quick-dry, non-smear ink 8 vibrant, memory-boosting colors 0.38mm ultra-fine tip Mitsubishi Pencil Uni-Ball One UMNS388C Gel Ballpoint Pens, 0.01 inches (0.38 mm), 8-Color Set

**Brand:** 三菱鉛筆(mitsubishi pencil)
**Price:** A$13
**Availability:** ✅ In Stock

## Summary

> 🖋️ Write sharp, remember sharper — the pen that powers your productivity.

## Quick Answers

- **What is this?** Mitsubishi Pencil Uni-Ball One UMNS388C Gel Ballpoint Pens, 0.01 inches (0.38 mm), 8-Color Set by 三菱鉛筆(mitsubishi pencil)
- **How much does it cost?** A$13 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.au](https://www.desertcart.com.au/products/725777064-mitsubishi-pencil-uni-ball-one-umns388c-gel-ballpoint-pens-0)

## Best For

- 三菱鉛筆(mitsubishi pencil) enthusiasts

## Why This Product

- Trusted 三菱鉛筆(mitsubishi pencil) brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smudge-Free Confidence:** Innovative quick-drying ink formula prevents smearing and bleed-through, keeping your documents pristine.
- • **Sleek, Functional Design:** Minimalist straight shaft with an oval wire clip fits effortlessly in your pocket or notebook for on-the-go productivity.
- • **Precision in Every Stroke:** Ultra-fine 0.01 inch (0.38 mm) tip delivers crisp, detailed writing perfect for professionals who demand clarity.
- • **Vibrant Colors That Stick:** 8 rich, vivid ink colors engineered with pigment technology to enhance memory retention and make your notes pop.
- • **Memory-Friendly Ink Palette:** Special colors compatible with red sheet underlays, ideal for millennial managers mastering efficient study and recall.

## Overview

The Mitsubishi Pencil Uni-Ball One UMNS388C is a premium gel ballpoint pen set featuring an ultra-fine 0.38 mm tip and 8 vibrant ink colors. Utilizing advanced bead pack pigment technology, it produces darker, clearer text proven to enhance memory retention. Its quick-drying, non-smearing ink ensures clean, professional notes every time. Designed with a sleek, straight shaft and practical oval wire clip, this set is perfect for busy professionals and students seeking precision, style, and efficiency in their writing tools.

## Description

These gel ink ballpoint pens use new bead pack pigment technology to make it possible to write darker text, which has been proven effective in making it easier to remember. Clear text in your notebook.Uni-Ball One. 1: Black is darker and the colors are more vibrant, letting you write clear text that’s easy to remember. The black color is even darker than general gel ink.In collaboration with Ritsumeikan University, we have found that the darker and clearer text written in black ink is, the easier it is to remember it.You can write text that will easily leave an impression on you when you review your notebook.2: Non-smearing/quick-drying ink: The ratio of the solid and liquid content in the newly-developed "Uni-Ball One Ink" has been altered, allowing the liquid ingredients to penetrate the surface of the paper quickly while leaving the solid color material on the surface.While it’s quick-drying ink that penetrates the surface of the paper quickly, it does not smear or bleed through since it suppresses the color material from being absorbed into the surface.3: A lineup of ink colors that can be concealed by red sheet underlays: For those who use red sheet underlays for memorization as part of their memory learning process, these underlays can be used to conceal 3 colors of ink (orange, baby pink and yellow) in the 0.01-inch (0.38 mm) diameter set of pens, and 2 colors of ink (orange and yellow) in the 0.02-inch (0.5 mm) set.

Review: 書きやすい、感動 - 書き味が良すぎてクセになる 何回もリピしてます
Review: なくてはならない濃い黒のインク - ユニボールワンのインクは黒の濃さが際立っているため、遠視、近視、老眼・・・などで困っている人にとっても、見やすい文字や線がかけます。今のところは生活必需品なので、まとめ買いできてうれしいです。

## Features

- Series: Uni-Ball One
- Features: Black is darker and the colors are more vibrant, letting you write clear text that’s easy to remember
- Design: The shaft design has a simple and straight shape, and the oval-shaped open wire clip makes it easy to clip it to your notebook or pocket notebook
- Lead diameter: 0.01 inches (0.38 mm); Ink color: 8 colors (orange, green, pink, red, black, blue, sky blue, blue black)
- Size: Shaft: 3.5 inches (90.0 mm) x Thickness: 0.7 inches (18.0 mm) x Total Length: 5.5 inches (140.0 mm); Weight: 3.1 oz (88 g)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0851Y8TJL |
| Additional Features | Pocket Clip |
| Age Range (Description) | Adult | Children | Teens |
| Age Range Description | Adult | Children | Teens |
| Amazon Bestseller | #737 in Office Products ( See Top 100 in Office Products ) #26 in Gel Ink Pens |
| Brand | 三菱鉛筆(Mitsubishi Pencil) |
| Brand Name | 三菱鉛筆(Mitsubishi Pencil) |
| Closure Type | Retractable |
| Color | Set of 8 colors. |
| Customer Reviews | 4.5 out of 5 stars 3,659 Your Review |
| Drill Point | Fine |
| Global Trade Identification Number | 04902778261439 |
| Grip Type | Smooth |
| Hand Orientation | Right |
| Ink Base | Hybrid |
| Ink Color | Set of 8 colors |
| Item Diameter | 10 Millimeters |
| Item Dimensions | 14 x 9 x 2 cm |
| Item Height | 2 cm |
| Item Type Name | Gel Ink Ballpoint Pen |
| Item Weight | 3 Ounces |
| Line Size | 0.38 ミリメートル |
| Manufacturer | 三菱鉛筆(Mitsubishi Pencil) |
| Material | Plastic |
| Material Type | Plastic |
| Model Name | uni-ball one |
| Model Number | UMNS388C |
| Pattern | Single Item |
| Recommended Uses For Product | Writing |
| Style | Main unit |
| Unit Count | 8 本 |
| Warranty Description | Not Specific |
| Writing Instrument Form | Ballpoint Pen |

## Product Details

- **Age Range (Description):** Adult | Children | Teens
- **Brand:** 三菱鉛筆(Mitsubishi Pencil)
- **Color:** Set of 8 colors.
- **Ink Color:** Set of 8 colors
- **Writing Instrument Form:** Ballpoint Pen

## Images

![Mitsubishi Pencil Uni-Ball One UMNS388C Gel Ballpoint Pens, 0.01 inches (0.38 mm), 8-Color Set - Image 1](https://m.media-amazon.com/images/I/611Ba5BuJyL.jpg)
![Mitsubishi Pencil Uni-Ball One UMNS388C Gel Ballpoint Pens, 0.01 inches (0.38 mm), 8-Color Set - Image 2](https://m.media-amazon.com/images/I/61687Wh1Z5L.jpg)
![Mitsubishi Pencil Uni-Ball One UMNS388C Gel Ballpoint Pens, 0.01 inches (0.38 mm), 8-Color Set - Image 3](https://m.media-amazon.com/images/I/61Bw+E373ML.jpg)
![Mitsubishi Pencil Uni-Ball One UMNS388C Gel Ballpoint Pens, 0.01 inches (0.38 mm), 8-Color Set - Image 4](https://m.media-amazon.com/images/I/61LcLR97TxL.jpg)
![Mitsubishi Pencil Uni-Ball One UMNS388C Gel Ballpoint Pens, 0.01 inches (0.38 mm), 8-Color Set - Image 5](https://m.media-amazon.com/images/I/61iSofxxtcL.jpg)

## Available Options

This product comes in different **Pattern, Color, Style** options.

## Questions & Answers

**Q: do you also sell ink refills for these pens? I'm looking for blue**
A: These pens do not write well at all.

**Q: How do these compare to Tül pens?**
A: Well TUL has a larger ball base than the UNI. I find a thinner base more functional

**Q: Does the ink show up on black paper or is it just for white paper?**
A: Just for white, I have been looking for a milky equivalent. I keep hoping they will make some :) since these are my favorite.

**Q: Is the ink archival and waterproof?**
A: As far as I can tell yes

## Customer Reviews

### ⭐⭐⭐⭐⭐ 書きやすい、感動
*by け***ん on December 29, 2025*

書き味が良すぎてクセになる 何回もリピしてます

### ⭐⭐⭐⭐⭐ なくてはならない濃い黒のインク
*by こ***も on December 26, 2025*

ユニボールワンのインクは黒の濃さが際立っているため、遠視、近視、老眼・・・などで困っている人にとっても、見やすい文字や線がかけます。今のところは生活必需品なので、まとめ買いできてうれしいです。

### ⭐⭐⭐⭐ 発色良き
*by ま***も on January 1, 2026*

発色もよく、描きやすかった！

## Frequently Bought Together

- Uni Ball One, Gel Ink 0.38mm Ballpoint Pen, 8 Colors Set (UMNS388C)
- Uniball Gel Pen 12 Pack, 0.38mm Ultra Micro Black Ink, Smooth Writing Office Supplies
- Mitsubishi Pencil UMNS38FC8C Gel Ballpoint Pen Uni-Ball One 0.38 Fica Color Set of 8 Colors

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**Shop now:** [https://www.desertcart.com.au/products/725777064-mitsubishi-pencil-uni-ball-one-umns388c-gel-ballpoint-pens-0](https://www.desertcart.com.au/products/725777064-mitsubishi-pencil-uni-ball-one-umns388c-gel-ballpoint-pens-0)

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*Product available on Desertcart Australia*
*Store origin: AU*
*Last updated: 2026-01-23*