---
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: "Bs.193"
currency: BOB
in_stock: true
reviews_count: 13
category: "三菱鉛筆"
url: https://www.desertcart.bo/products/94791889-uni-jetstream-multi-pen-4-and-1-0-38mm-ballpoint
store_origin: BO
region: Bolivia
---

# Jetstream quick-dry ink 4 vibrant ink colors + pencil 0.38mm ultra-fine precision 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:** Bs.193
**Availability:** ✅ In Stock

## Summary

> 🖋️ Master your notes with precision and flair — the ultimate pen for the multitasking millennial.

## 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?** Bs.193 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.bo](https://www.desertcart.bo/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

- • **Smooth & Swift:** Jetstream ink delivers buttery smooth strokes with rapid drying to keep your workflow uninterrupted.
- • **Pinpoint Precision:** Write crisp, ultra-fine 0.38mm lines perfect for detailed notes and small spaces.
- • **Color-Coded Clarity:** Switch seamlessly between black, red, blue, and green inks to organize your thoughts like a pro.
- • **Ergonomic Navy Body:** Sleek resin barrel designed for comfortable grip during long brainstorming sessions or meetings.
- • **All-in-One Efficiency:** Includes a 0.5mm mechanical pencil for sketching or drafting—no need to carry extra tools.

## Overview

The Uni Jetstream Multi Pen 4&1 combines four ultra-fine 0.38mm ballpoint inks (black, red, blue, green) with a 0.5mm mechanical pencil in a stylish navy resin body. Featuring smooth, quick-drying Jetstream ink, it’s engineered for professionals who demand precision, color versatility, and ergonomic comfort in one sleek multifunction pen.

## 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 | #38,415 in Office Products ( See Top 100 in Office Products ) #877 in Ballpoint Pens |
| Brand | 三菱鉛筆 |
| Color | Navy |
| Customer Reviews | 4.5 4.5 out of 5 stars (709) |
| Date First Available | November 14, 2017 |
| Grip Type | Smooth |
| Ink Color | Multicolor |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.8 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)

## 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.

### ⭐⭐⭐⭐⭐ Excellent precision writing tools
*by T***D on April 6, 2021*

I used to carry some really nice custom made pens loaded with Jetstream refills (0.5mm) until I met these 0.35mm Multi Pens. An engineer I work with recently returned from Japan where he always buys a few to bring home. He was eyeballing one of my custom pens and I was eyeballing his multi pen. We traded. I've been hooked ever since. It is so nice being able to write color coded field notes, redline schematics, and pencil mark practically anything all with one well-made pen. I write very small so finding a pen that can draw such a consistent thin line without bleeding all over the page or smearing is a rare find. I've found nothing that works better. I highly, highly recommend these pens.

## 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 Bolivia*
*Store origin: BO*
*Last updated: 2026-02-03*