---
product_id: 562413540
title: "Mitsubishi Pencil Uni-Ball One P UMNSP05.28 Gel Pen, 0.5, Banana"
brand: "三菱鉛筆"
price: "¥3284"
currency: JPY
in_stock: true
category: "三菱鉛筆"
url: https://www.desertcart.jp/products/562413540-mitsubishi-pencil-uni-ball-one-p-umnsp05-28-gel-pen
store_origin: JP
region: Japan
---

# unique banana-inspired design low center of gravity stabilizer 0.5mm fine gel tip Mitsubishi Pencil Uni-Ball One P UMNSP05.28 Gel Pen, 0.5, Banana

**Brand:** 三菱鉛筆
**Price:** ¥3284
**Availability:** ✅ In Stock

## Summary

> 🍌✒️ Write smart, stand out subtly.

## Quick Answers

- **What is this?** Mitsubishi Pencil Uni-Ball One P UMNSP05.28 Gel Pen, 0.5, Banana by 三菱鉛筆
- **How much does it cost?** ¥3284 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/562413540-mitsubishi-pencil-uni-ball-one-p-umnsp05-28-gel-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

- • **Stabilizer Mechanism:** Engineered low center of gravity ensures steady, fatigue-free writing every time.
- • **Smooth Precision Writing:** Experience flawless 0.5mm gel ink flow for crisp, professional notes.
- • **Stylish Everyday Accessory:** Banana-inspired pastel yellow shaft adds a subtle pop of personality to your desk.
- • **Ergonomic Pocket-Sized Design:** Compact yet comfortable—perfectly shaped to fit your hand and your lifestyle.
- • **Universal Refill Compatibility:** Easily replace ink with common UMR-38S/UMR-05S refills—sustain your style effortlessly.

## Overview

The Mitsubishi Uni-Ball One P UMNSP05.28 is a sleek, retractable gel pen featuring a precise 0.5mm tip and a unique banana-inspired design. Its low center of gravity stabilizer mechanism delivers smooth, stable writing, while the compact, ergonomic shape fits comfortably in your hand and pocket. Compatible with standard Uni-Ball refills, this pen blends professional performance with playful style—ideal for millennials who value both function and flair.

## Description

~uni-ball one P ~ It is very cute and has a fine texture and smooth writing experience that fits in your hand. A sweet and sweet shaft shape that allows you to feel soothing during your daily life. We aimed to create the perfect shape that is short but easy to hold and write on. Product Features: ■ Small and lovely, the axis design blends into your daily life. It blends in with your daily life and interior decor and occasionally accent. I want to write a word. We pursued a cute design that is easy to carry around in such situations. The shaft color name is inspired by small and cute candy, and uses the name uni-ball one P meaning the pocket. ■ Perfect shape for short yet easy writing. We aimed to create the perfect shape that is not only cute but also easy to write in your hand. The knock part is rounded to allow for easy knocking and the clips are wide/short for shorter axes. Also equipped with a metal base (stabilizer mechanism). Provides a consistent, smooth writing experience. Refill is equipped with UMR-38S/UMR-05S common to the uni-ball one series. Find your own favorite one.

## Features

- Uni-Ball One P: The cute and high-quality texture that fits in your hand and has a smooth writing experience
- [Features] Equipped with a stabilizer mechanism that provides a stable writing with a low center of gravity
- Design: A sweet and sweet shaft shape that allows you to feel soothing during your daily life. We aimed to create the perfect shape that is short but easy to hold and write on
- Lead Diameter: 0.02 inches (0.5 mm); Ink Color: Black
- Size: Shaft Diameter 0.5 x Thickness 0.7 x Total Length 4.6 inches (13.9 x 19.2 x 116.8 mm); Weight: 0.5 oz (13.7 g)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BZHD973D |
| Additional Features | Pockets |
| Age Range Description | Adult |
| Animal Theme | no animal theme |
| Best Sellers Rank | #5,145 in Office Products ( See Top 100 in Office Products ) #145 in Gel Ink Rollerball Pens |
| Body Shape | Round |
| Brand Name | 三菱鉛筆 |
| Closure Type | Retractable |
| Color | Banana |
| Customer Reviews | 4.4 4.4 out of 5 stars (1,266) |
| Drill Point | Fine |
| Grip Type | Contoured |
| Hand Orientation | Ambidextrous |
| Included Components | Ink Cartridge |
| Ink Base | Water |
| Ink Color | Black |
| Item Diameter | 0.5 Millimeters |
| Item Dimensions | 11.7 x 1.4 x 1.9 centimeters |
| Item Type Name | Gel Ink Pen |
| Item Weight | 9 Grams |
| Line Size | 0.5mm |
| Manufacturer | 三菱鉛筆 |
| Material Type | Plastic |
| Model Name | Uni-Ball One P |
| Model Number | UMNSP05.28 |
| Pattern | unique item |
| Recommended Uses For Product | Writing |
| Style | Japanese |
| Subject Character | Banana |
| Theme | Fruit |
| Unit Count | 1 Count |
| Water Resistance Level | Not Water Resistant |
| Writing Instrument Form | Ballpoint Pen |
| Writing Technique | gel ink |

## Product Details

- **Age range (description):** Adult
- **Brand:** 三菱鉛筆
- **Colour:** Banana
- **Ink colour:** Black
- **Writing instrument form:** Ballpoint Pen

## Images

![Mitsubishi Pencil Uni-Ball One P UMNSP05.28 Gel Pen, 0.5, Banana - Image 1](https://m.media-amazon.com/images/I/514rxx7YWlL.jpg)

## Available Options

This product comes in different **Color** options.

## Frequently Bought Together

- Mitsubishi Pencil UMNSP05.28 Gel Ballpoint Pen Uni-Ball One P 0.5 Banana
- uni Mitsubishi Pencil UMNSPT38M.79 Gel Ballpoint Pen Ball One P 0.38 M Savon
- Mitsubishi Pencil UMNSFT05D.6 Gel Ballpoint Pen Uni-Ball One F 0.5 D Green

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-10-10*