---
product_id: 94791889
title: "Uni Jetstream Multi Pen 4 and 1, 0.38mm Ballpoint Pen (Black, Red, Blue, Green) and 0.5mm Mechanical Pencil, Body, Navy (MSXE5100038.9)"
brand: "三菱鉛筆"
price: "NT$586"
currency: TWD
in_stock: true
reviews_count: 13
category: "三菱鉛筆"
url: https://www.desertcart.tw/products/94791889-uni-jetstream-multi-pen-4-and-1-0-38mm-ballpoint
store_origin: TW
region: Taiwan
---

# 4 vibrant ink colors (Black, Red, Blue, Green) 0.5mm precision mechanical pencil 0.38mm ultra-fine ballpoint tip Uni Jetstream Multi Pen 4 and 1, 0.38mm Ballpoint Pen (Black, Red, Blue, Green) and 0.5mm Mechanical Pencil, Body, Navy (MSXE5100038.9)

**Brand:** 三菱鉛筆
**Price:** NT$586
**Availability:** ✅ In Stock

## Summary

> 🖋️ Master your notes with precision and flair—because details matter.

## Quick Answers

- **What is this?** Uni Jetstream Multi Pen 4 and 1, 0.38mm Ballpoint Pen (Black, Red, Blue, Green) and 0.5mm Mechanical Pencil, Body, Navy (MSXE5100038.9) by 三菱鉛筆
- **How much does it cost?** NT$586 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tw](https://www.desertcart.tw/products/94791889-uni-jetstream-multi-pen-4-and-1-0-38mm-ballpoint)

## 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

- • **Ergonomic & Stylish:** Comfortable resin grip and professional navy finish make every writing session a pleasure.
- • **All-in-One Efficiency:** Combine pen and pencil in one sleek navy body—ideal for multitasking managers on the go.
- • **Color-Code Like a Pro:** Switch effortlessly between four vivid ink colors to organize, highlight, and personalize your work.
- • **Precision Meets Versatility:** Write crisp, small letters with the ultra-fine 0.38mm tip—perfect for detailed notes and tight spaces.
- • **Smooth, Quick-Dry Jetstream Ink:** Experience silky-smooth writing with ink that dries fast—no smudges, no mess.

## Overview

The Uni Jetstream Multi Pen 4&1 features an ultra-fine 0.38mm ballpoint tip with smooth, quick-drying Jetstream ink in four colors (black, red, blue, green) plus a 0.5mm mechanical pencil. Designed for professionals who demand precision and versatility, its ergonomic navy resin body offers comfort and style in one compact tool.

## Description

New lineup with a ball diameter 0.38mm has been added to the popular "Jetstream 4&1" Series. A ball diameter 0.38 mm is suitable for writing small letters, writing on a small space such as a notebook or memo pad. Since the ink is equipped with "Jetstream ink", It can be drawn clearly and darkly, and it is also excellent in quick drying.

Review: The Best Pens! - Uni Jetstream pens are high quality. They write smooth thin lines (0.38). I have been using them for over 10 years and will continue to do so. I love the multi-colors. Perfect for those who need to take notes, using different colors. They look professional. Pen refills are readily available. Strongly recommended.
Review: Great gadget for nurses, journaling - My wife is a nurse and brought home a single-barrel black version of this Jetstream pen that a colleague had loaned her. She was impressed with the smooth, fine, 0.38mm line -- as was I. So I went online to buy some and found this multi-pen version. I am geek for multi-pens and own a few good ones. This one is not as fancy, but it has five options, including three or four (red, blue, black, and green pens, plus o 0.5mm pencil), And the barrel is so nice to hold. The operation is easy and the pen writes very well. My wife uses four-color pens for charting; I like to differentiate notes in small notebooks, so this is perfect.

## Features

- 0.38mm Ballpoint pen and 0.5mm Mechanical Pencil
- Ballpoint pen color: Black, Red, blue and green
- Jetstream ink is smooth writing.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B076WXP9G8 |
| Best Sellers Rank | #54,104 in Office Products ( See Top 100 in Office Products ) #1,422 in Ballpoint Pens |
| Brand | 三菱鉛筆 |
| Color | Navy |
| Customer Reviews | 4.5 4.5 out of 5 stars (722) |
| Date First Available | November 14, 2017 |
| Grip Type | Smooth |
| Ink Color | Multicolor |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.634 ounces |
| Item model number | MSXE5100038.9 |
| Line Size | 0_3mm |
| Manufacturer | Uni |
| Manufacturer Part Number | MSXE5100038.9 |
| Material Type | Resin |
| Number of Items | 1 |
| Point Type | Extra Fine |
| Product Dimensions | 5.9 x 0.5 x 0.7 inches |
| Size | 1 Count (Pack of 1) |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** 三菱鉛筆
- **Color:** Navy
- **Ink Color:** Multicolor
- **Writing Instrument Form:** Multifunction Writing Instruments

## Images

![Uni Jetstream Multi Pen 4 and 1, 0.38mm Ballpoint Pen (Black, Red, Blue, Green) and 0.5mm Mechanical Pencil, Body, Navy (MSXE5100038.9) - Image 1](https://m.media-amazon.com/images/I/51iGDfcYLAL.jpg)

## Available Options

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

## Questions & Answers

**Q: Is this ink waterproof?**
A: Practically all Ball Point pen ink is water proof, for accidental liquids.  If you blot it up expeditiously, you should be fine.  If your plan is to soak the paper in water to test the ink, well good luck.  If you want to take notes during your scuba class find a different instrument.

**Q: Where can you find replacement erasers for this?**
A: You should look for it on Amazon with the keyword "Jetstream replacement ink or eraser".

**Q: Where can you get refills for this? I can find 0.5mm, but not the 0.38mm.**
A: Here's a link on Amazon.  
https://smile.amazon.com/Mitsubishi-Jetstream-Multi-Color-Multi-Functional-Ballpoint/dp/B07FHP6RMB/ref=sr_1_31?crid=9GUANE279VEW&keywords=jetstream+0.38+refill&qid=1675186184&sprefix=jetstream+0.3%2Caps%2C72&sr=8-31

**Q: How do you get the lead to come out?**
A: The metal  "clip" (for lack of a better word) is actually for the pencil lead. I found that out by accident.

## Customer Reviews

### ⭐⭐⭐⭐⭐ The Best Pens!
*by T***. on November 23, 2025*

Uni Jetstream pens are high quality. They write smooth thin lines (0.38). I have been using them for over 10 years and will continue to do so. I love the multi-colors. Perfect for those who need to take notes, using different colors. They look professional. Pen refills are readily available. Strongly recommended.

### ⭐⭐⭐⭐⭐ Great gadget for nurses, journaling
*by F***N on September 30, 2022*

My wife is a nurse and brought home a single-barrel black version of this Jetstream pen that a colleague had loaned her. She was impressed with the smooth, fine, 0.38mm line -- as was I. So I went online to buy some and found this multi-pen version. I am geek for multi-pens and own a few good ones. This one is not as fancy, but it has five options, including three or four (red, blue, black, and green pens, plus o 0.5mm pencil), And the barrel is so nice to hold. The operation is easy and the pen writes very well. My wife uses four-color pens for charting; I like to differentiate notes in small notebooks, so this is perfect.

### ⭐⭐⭐⭐⭐ Impressive
*by D***D on February 6, 2026*

Perfect everyday use in all my work , no wet ink spills so dries quick , writes perfect great feel to the hand to hold and 10/10 my partner also loves it for work

## Frequently Bought Together

- Uni Jetstream Multi Pen 4 and 1, 0.38mm Ballpoint Pen (Black, Red, Blue, Green) and 0.5mm Mechanical Pencil, Body, Navy (MSXE5100038.9)
- Uni Jetstream Multi Pen 4 and 1, 0.38mm Ballpoint Pen (Black, Red, Blue, Green) and 0.5mm Mechanical Pencil, Baby Pink Body, Pink Gold (MSXE5100038.68)
- Uni Jetstream Multi Pen 4 and 1, 0.38mm Ballpoint Pen (Red, Blue, Green) and 0.5mm Mechanical Pencil, Body, Black (MSXE5100038.24)

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*Product available on Desertcart Taiwan*
*Store origin: TW*
*Last updated: 2026-03-20*