---
product_id: 121541509
title: "uni-ball UB-188-M Micro Air Rollerball Pens. Premium 0.5mm Nib for Super Smooth Handwriting. Writes Like a Fountain Pen. Fade and Water Resistant Liquid Uni Super Ink. Box of 12 Black Ballpoint Pens"
brand: "uni-ball"
price: "$48.82"
currency: USD
in_stock: true
category: "Uni Ball"
url: https://www.desertcart.us/products/121541509-uni-ball-ub-188-m-micro-air-rollerball-pens-premium
store_origin: US
region: United States of America
---

# fade & water resistant ink frictionless metal ball 0.5mm precision nib uni-ball UB-188-M Micro Air Rollerball Pens. Premium 0.5mm Nib for Super Smooth Handwriting. Writes Like a Fountain Pen. Fade and Water Resistant Liquid Uni Super Ink. Box of 12 Black Ballpoint Pens

**Brand:** uni-ball
**Price:** $48.82
**Availability:** ✅ In Stock

## Summary

> 🖊️ Write Boldly, Last Impressively.

## Quick Answers

- **What is this?** uni-ball UB-188-M Micro Air Rollerball Pens. Premium 0.5mm Nib for Super Smooth Handwriting. Writes Like a Fountain Pen. Fade and Water Resistant Liquid Uni Super Ink. Box of 12 Black Ballpoint Pens by uni-ball
- **How much does it cost?** $48.82 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/121541509-uni-ball-ub-188-m-micro-air-rollerball-pens-premium)

## Best For

- uni-ball enthusiasts

## Why This Product

- Trusted uni-ball brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Ink That Lasts:** Uni Super Ink bonds deeply to paper—fade, water, and chemical resistant for documents that stand the test of time.
- • **Leak-Free Confidence:** Innovative capped design and frictionless metal ball ensure no leaks, even when tossed in your pocket on the go.
- • **Effortless Flow Control:** Adjust your pressure to switch from fine to bold strokes seamlessly, perfect for technical notes or creative flair.
- • **Precision Meets Elegance:** Experience ultra-smooth 0.5mm lines that elevate your handwriting to a professional art form.
- • **Sleek & Comfortable Grip:** Ergonomic, lightweight body designed for all-day writing comfort—because your ideas deserve the best tool.

## Overview

The uni-ball UB-188-M Micro Air Rollerball Pen combines the smoothness of a fountain pen with the reliability of a rollerball. Featuring a precision 0.5mm metal ball tip that glides frictionlessly at any angle, it uses Uni Super Ink—fade, water, and chemical resistant—to ensure your writing stays sharp and secure. Packaged in a sleek, ergonomic design with leak-proof capped tops, this box of 12 black pens is perfect for professionals who demand precision, durability, and style in every stroke.

## Description

The Uniball Micro-Air ballpoint pen gives you the freedom of a fountain pen with the security of a roller-ball with no leaks. Unlike other rollerballs, the Air’s metal ball is held in a plastic surround, allowing the ball to move without friction when the pen is held at an angle. It is filled with Uni-Ball Super Ink, an advanced ink formula that bonds to paper fibers. It is resistant to chemicals that wash dye-based ink from checks. Super ink is also fade resistant, water resistant, and acid free. Applying light pressure will give a finer line as ink is transferred by the ball itself, whilst firmer pressure allows the ink to flow freely around the ball for a thicker line. The Micro-air pen will give you a finer line width between 0.25mm - 0.45mm, perfect for technical writing or small printing. The sleek, elegant look and feel that is comfortable and easy to grip, and the capped top stays put and ensures that this pen will never leak in your pocket. Black Ink in a Box of 12.

## Features

- Freedom of a fountain pen with the security of a roller-ball with no leaks, the Air’s unique metal ball can move without friction when the pen is held at an angle
- Filled with Uni-Ball Super Ink, an advanced ink formula that bonds to paper fibers, fade resistant, water resistant, and acid free, resistant to chemicals that wash dye-based ink from checks
- Light pressure will give a finer line as ink is transferred by the ball itself, firmer pressure allows the ink to flow freely around the ball for a thicker line
- Will give you a finer line width between 0.25mm - 0.45mm, perfect for technical writing or small printing, Black Ink in a Box of 12
- Sleek, elegant look and feel that is comfortable and easy to grip, capped top stays put and ensures that this pen will never leak in your pocket

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B016BHQ0UO |
| Additional Features | Lightweight, Liquid Ink, Pocket Clip, Quick Drying |
| Age Range Description | Adult |
| Best Sellers Rank | #116,627 in Office Products ( See Top 100 in Office Products ) #276 in Liquid Ink Rollerball Pens |
| Body Shape | Round |
| Brand Name | Uni-Ball |
| Closure Type | Click-Off Cap |
| Color | Black Gel |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,026) |
| Drill Point | Fine |
| Global Trade Identification Number | 04548351063887 |
| Grip Type | Ergonomic handle |
| Hand Orientation | Ambidextrous |
| Hardness | F |
| Included Components | Pens Only |
| Ink Base | Water |
| Ink Color | Black |
| Item Dimensions | 1.1 x 3.19 x 5.75 inches |
| Item Type Name | Fountain Pen Tip Air Rollerball Pens |
| Item Weight | 0.1 Kilograms |
| Line Size | 0.5 Millimeters |
| Manufacturer | Mitsubishi Pencil Company |
| Material Type | Metal Plastic |
| Model Name | UBA-188-M |
| Model Number | 190470000 |
| Recommended Uses For Product | Writing |
| Style | 12 Black |
| Unit Count | 12.0 Count |
| Water Resistance Level | Waterproof |
| Writing Instrument Form | Ballpoint Pen |

## Product Details

- **Age Range (Description):** Adult
- **Brand:** Uni-Ball
- **Color:** Black Gel
- **Ink Color:** Black
- **Writing Instrument Form:** Ballpoint Pen

## Images

![uni-ball UB-188-M Micro Air Rollerball Pens. Premium 0.5mm Nib for Super Smooth Handwriting. Writes Like a Fountain Pen. Fade and Water Resistant Liquid Uni Super Ink. Box of 12 Black Ballpoint Pens - Image 1](https://m.media-amazon.com/images/I/71X1oelZtCL.jpg)
![uni-ball UB-188-M Micro Air Rollerball Pens. Premium 0.5mm Nib for Super Smooth Handwriting. Writes Like a Fountain Pen. Fade and Water Resistant Liquid Uni Super Ink. Box of 12 Black Ballpoint Pens - Image 2](https://m.media-amazon.com/images/I/61ldXa3CBCL.jpg)
![uni-ball UB-188-M Micro Air Rollerball Pens. Premium 0.5mm Nib for Super Smooth Handwriting. Writes Like a Fountain Pen. Fade and Water Resistant Liquid Uni Super Ink. Box of 12 Black Ballpoint Pens - Image 3](https://m.media-amazon.com/images/I/71avD3-09LL.jpg)
![uni-ball UB-188-M Micro Air Rollerball Pens. Premium 0.5mm Nib for Super Smooth Handwriting. Writes Like a Fountain Pen. Fade and Water Resistant Liquid Uni Super Ink. Box of 12 Black Ballpoint Pens - Image 4](https://m.media-amazon.com/images/I/613KoM9ISzL.jpg)
![uni-ball UB-188-M Micro Air Rollerball Pens. Premium 0.5mm Nib for Super Smooth Handwriting. Writes Like a Fountain Pen. Fade and Water Resistant Liquid Uni Super Ink. Box of 12 Black Ballpoint Pens - Image 5](https://m.media-amazon.com/images/I/61BgapkpdqL.jpg)

## Available Options

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

## Frequently Bought Together

- uni-ball UB-188-M Micro Air Rollerball Pens. Premium 0.5mm Nib for Super Smooth Handwriting. Writes Like a Fountain Pen. Fade and Water Resistant Liquid Uni Super Ink. Box of 12 Black Ballpoint Pens
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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-07-13*