---
product_id: 574780397
title: "Uni-Ball AIR Micro - 0.5mm Fine Rollerball - 4 Pack - Black and Blue Ink - UBA-188-M"
brand: "uni-ball"
price: "$U2475"
currency: UYU
in_stock: true
url: https://www.desertcart.uy/products/574780397-uni-ball-air-micro-0-5mm-fine-rollerball-4-pack
store_origin: UY
region: Uruguay
---

# Super Ink: water & light resistant Tamper-resistant ink security 0.5mm pressure-sensitive nib Uni-Ball AIR Micro - 0.5mm Fine Rollerball - 4 Pack - Black and Blue Ink - UBA-188-M

**Brand:** uni-ball
**Price:** $U2475
**Availability:** ✅ In Stock

## Summary

> 🖋️ Elevate your writing game with precision and security in every stroke!

## Quick Answers

- **What is this?** Uni-Ball AIR Micro - 0.5mm Fine Rollerball - 4 Pack - Black and Blue Ink - UBA-188-M by uni-ball
- **How much does it cost?** $U2475 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.uy](https://www.desertcart.uy/products/574780397-uni-ball-air-micro-0-5mm-fine-rollerball-4-pack)

## 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

- • **Dual-Tone Power Pack:** Four pens included—two classic black and two vibrant blue—ready to elevate every note and signature.
- • **Ink That Stands the Test of Time:** Uni’s Super Ink resists water, light, and tampering—perfect for secure, professional documents.
- • **Smooth Ink Flow, No Interruptions:** Innovative acetal plastic casing around the metal ball ensures ultra-smooth ink delivery that responds to your pressure.
- • **Write with Precision & Personality:** Pressure-sensitive nib adapts line width from 0.28mm to 0.45mm for dynamic, fountain-pen style strokes.
- • **Designed for the Modern Professional:** Sleek, lightweight design with click-off caps for quick access and confident writing on the go.

## Overview

The Uni-Ball AIR Micro 0.5mm rollerball pen features a revolutionary pressure-sensitive nib that mimics fountain pen line variation, encased in acetal plastic for smooth ink flow. Equipped with Uni’s Super Ink, it offers water, light, and tamper resistance, ensuring your writing stays sharp and secure. This 4-pack includes two black and two blue pens, perfect for professionals who demand precision and reliability.

## Description

The metal ball of the nib is encased in an acetal plastic, rather than the standard metal surround, which allows for a smoother flow of ink around the ball, and an increased flow as further pressure is applied. This set contains four gel ink rollerball pens, two with black and two with blue ink.

## Features

- The revolutionary nib of the Air, unlike conventional rollerballs, is pressure sensitive, meaning that it gives a writing experience and differentiating line width similar to that of a fountain pen.
- The metal ball of the nib is encased in an acetal plastic, rather than the standard metal surround, which allows for a smoother flow of ink around the ball, and an increased flow as further pressure is applied.
- The 0.5mm ball delivers a line width of between 0.28mm and 0.45mm (dependent on pressure).
- Features Uni's high quality "Super Ink", which is not only water and light resistant, but also "Tamper-Resistant", meaning that the ink cannot be washed off using chemicals and solutions used by people to fraudulently modify doents.
- This set contains four pens, two with black and two with blue ink.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Mitsubishi Pencil Co Ltd |
| Brand | uni-ball |
| Product Dimensions | 14 x 5.2 x 1.6 cm; 40 g |
| Color | Multicolor |
| Closure | Click-Off Cap |
| Material Type | Plastic |
| Size | 1 count (Pack of 4) |
| Point Type | Fine |
| Line Size | 0.45 Millimeters |
| Ink Color | Black, Blue |
| Manufacturer Part Number | UBA-188-M-4BBL |
| Item Weight | 40 g |

## Product Details

- **Brand:** uni-ball
- **Writing instrument form:** Roller Ball Pen
- **Colour:** Multicolor
- **Ink colour:** Black, Blue
- **Age range (description):** Adult

## Images

![Uni-Ball AIR Micro - 0.5mm Fine Rollerball - 4 Pack - Black and Blue Ink - UBA-188-M - Image 1](https://m.media-amazon.com/images/I/711ptX0E5rL.jpg)
![Uni-Ball AIR Micro - 0.5mm Fine Rollerball - 4 Pack - Black and Blue Ink - UBA-188-M - Image 2](https://m.media-amazon.com/images/I/61ITnJTiFsL.jpg)
![Uni-Ball AIR Micro - 0.5mm Fine Rollerball - 4 Pack - Black and Blue Ink - UBA-188-M - Image 3](https://m.media-amazon.com/images/I/61hBDkoObPL.jpg)
![Uni-Ball AIR Micro - 0.5mm Fine Rollerball - 4 Pack - Black and Blue Ink - UBA-188-M - Image 4](https://m.media-amazon.com/images/I/61ixfyRI8+L.jpg)
![Uni-Ball AIR Micro - 0.5mm Fine Rollerball - 4 Pack - Black and Blue Ink - UBA-188-M - Image 5](https://m.media-amazon.com/images/I/61wNMXjqs2L.jpg)

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**Shop now:** [https://www.desertcart.uy/products/574780397-uni-ball-air-micro-0-5mm-fine-rollerball-4-pack](https://www.desertcart.uy/products/574780397-uni-ball-air-micro-0-5mm-fine-rollerball-4-pack)

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*Product available on Desertcart Uruguay*
*Store origin: UY*
*Last updated: 2026-02-10*