---
product_id: 548405221
title: "Mitsubishi Pencil Uni-Ball One UMNS38.24 Gel Ballpoint Pen, 0.01 inches (0.38 mm), Black, 10 Pieces"
brand: "三菱鉛筆"
price: "₩38277"
currency: KRW
in_stock: true
reviews_count: 8
category: "三菱鉛筆"
url: https://www.desertcart.kr/products/548405221-mitsubishi-pencil-uni-ball-one-umns38-24-gel-ballpoint-pen
store_origin: KR
region: South Korea
---

# Quick-drying, smudge-resistant formula Darker, more vibrant black ink 0.38mm ultra-fine tip for precision Mitsubishi Pencil Uni-Ball One UMNS38.24 Gel Ballpoint Pen, 0.01 inches (0.38 mm), Black, 10 Pieces

**Brand:** 三菱鉛筆
**Price:** ₩38277
**Availability:** ✅ In Stock

## Summary

> 🖤 Write sharp, stay sharp — the pen that means business.

## Quick Answers

- **What is this?** Mitsubishi Pencil Uni-Ball One UMNS38.24 Gel Ballpoint Pen, 0.01 inches (0.38 mm), Black, 10 Pieces by 三菱鉛筆
- **How much does it cost?** ₩38277 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/548405221-mitsubishi-pencil-uni-ball-one-umns38-24-gel-ballpoint-pen)

## Best For

- 三菱鉛筆 enthusiasts

## Why This Product

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

## Key Features

- • **No More Smudges:** Quick-drying gel ink keeps your work clean and professional—no smears, no mess.
- • **Ink That Stands Out:** Uni-ball One’s darker black ink ensures your notes are unforgettable and vibrant.
- • **Sleek & Comfortable:** Slim, straight shaft design fits perfectly in your hand for smooth, fatigue-free writing.
- • **Precision that Impresses:** Ultra-fine 0.38mm tip delivers crisp, clear writing every time.
- • **Effortless Clip-On Design:** Oval wire clip easily attaches to notebooks or planners for on-the-go convenience.

## Overview

The Mitsubishi Pencil Uni-Ball One UMNS38.24 is a pack of 10 gel ballpoint pens featuring a 0.38mm ultra-fine tip and uniquely darker black ink. Engineered with quick-drying, smudge-resistant technology, these pens deliver crisp, vibrant writing that leaves a lasting impression. Designed with a sleek, straight shaft and an easy-to-clip oval wire, they combine professional style with practical convenience for the modern manager.

## Description

This gel ink ballpoint pen uses new technology bead pack pigments to write darker text and proven to be memorable. "Notebook, crisp and crisp. uni-ball one 1: Black is darker and the colors are more vibrant, and the black color is darker than the general gel ink that can be easily remembered and clearly written letters. In collaboration with Ritsaikan University, we have found that black color can be easily remembered as darker and crisp letters. You can write letters that are easy to leave impressions when you return the notebook. 2: Non-smearing, quick-drying, "UniBall One Ink" changes the ratio of the solids and liquid content in the ink, allowing liquid ingredients to be absorbed into the paper surface of the paper, while still leaving a solid color material on the paper. Quick-drying ink that penetrates quickly to the surface of the paper, yet does not bleed through and bleed through. 3: The ink color hidden by the red sheet is also available for those who are learning memory with a line-up/memorization red sheet, and the 0.38mm includes 3 colors, orange, baby pink, yellow, 0.5mm, orange, and yellow with a red sheet for memory.

Review: Love these pen refills the best! - Love these refilled they are an excellent value for your dollar and fit perfectly in my uniball ball point pen. I love that they are .38 mm. I only wish they held more ink. I use them for EVERYTHING and do a lot of Bible study, sermon notes, and other writings. The ink flow is amazing the the quality and durability are great. I think of 2-3 purchases I had issues with one of them. All others have worked fine. These are my go to pen refills. I love the design and know that they fit my pens. If you love writing with a great pen and like very fine tips these are the best
Review: Can use with many version - The work with both the small and tall pens from uniball. Great quality pens and these refills make it so that i can keep using them without have to throw them and buy.

## Features

- Series: Uni-ball one
- Features: Black is darker and the colors are more vibrant, making it easy to remember and write crisp letters
- Design: The shaft design has a simple and straight shape, and the oval shaped open wire clip makes it easy to clip in your notebook or notebook
- Lead diameter: 0.01 inches (0.38 mm); Ink color: Black
- Size: Shaft Diameter 0.4 x Thickness 0.6 x Total Length 5.5 inches (10.5 x 15.0 x 139.5 mm); Weight: 3.9 oz (109.4 g)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | 三菱鉛筆 |
| Brand | 三菱鉛筆 |
| Item Weight | 3.9 ounces |
| Product Dimensions | 5.49 x 0.41 x 0.59 inches |
| Item model number | ハコUMNS38.24 |
| Color | Black |
| Closure | Snap |
| Grip Type | Smooth |
| Material Type | Plastic |
| Number of Items | 10 |
| Size | 1 Count (Pack of 10) |
| Line Size | 0.3mm |
| Ink Color | Black |
| Manufacturer Part Number | ハコUMNS38.24 |

## Product Details

- **Brand:** 三菱鉛筆
- **Writing Instrument Form:** Ballpoint Pen
- **Color:** Black
- **Ink Color:** Black
- **Age Range (Description):** Adult

## Images

![Mitsubishi Pencil Uni-Ball One UMNS38.24 Gel Ballpoint Pen, 0.01 inches (0.38 mm), Black, 10 Pieces - Image 1](https://m.media-amazon.com/images/I/61fBsoFnRzL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Love these pen refills the best!
*by J***H on November 23, 2025*

Love these refilled they are an excellent value for your dollar and fit perfectly in my uniball ball point pen. I love that they are .38 mm. I only wish they held more ink. I use them for EVERYTHING and do a lot of Bible study, sermon notes, and other writings. The ink flow is amazing the the quality and durability are great. I think of 2-3 purchases I had issues with one of them. All others have worked fine. These are my go to pen refills. I love the design and know that they fit my pens. If you love writing with a great pen and like very fine tips these are the best

### ⭐⭐⭐⭐⭐ Can use with many version
*by H***. on January 7, 2026*

The work with both the small and tall pens from uniball. Great quality pens and these refills make it so that i can keep using them without have to throw them and buy.

### ⭐⭐⭐⭐⭐ Refills so many of my favourite pens
*by R***E on October 30, 2025*

Some of my favourite pens have refills! I love my Uni-Ball pens. The fine tip and smooth writing means I always have one with me. Being refillable is a big plus for me and it fits in both the full size pen and the shorter pen. Refills cuts down on plastic waste so I don't always have to buy new pens.

## Frequently Bought Together

- Mitsubishi Pencil Uni-Ball One UMNS38.24 Gel Ballpoint Pen, 0.01 inches (0.38 mm), Black, 10 Pieces
- Mitsubishi Pencil UMNSP38.38 Gel Ballpoint Pen Uni-Ball One P 0.38 Orange

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*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-01-31*