---
product_id: 457250731
title: "AIR Micro - 0.5mm Fine Rollerball - 4 Pack - Black and Blue Ink - UBA-188-M"
brand: "uni-ball"
price: "€ 20.65"
currency: EUR
in_stock: true
reviews_count: 2
category: "Uni Ball"
url: https://www.desertcart.de/products/457250731-air-micro-0-5mm-fine-rollerball-4-pack-black-blue
store_origin: DE
region: Germany
---

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

**Brand:** uni-ball
**Price:** € 20.65
**Availability:** ✅ In Stock

## Summary

> 🖋️ Write Like a Pro, Impress Like a Boss

## Quick Answers

- **What is this?** AIR Micro - 0.5mm Fine Rollerball - 4 Pack - Black and Blue Ink - UBA-188-M by uni-ball
- **How much does it cost?** € 20.65 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/457250731-air-micro-0-5mm-fine-rollerball-4-pack-black-blue)

## 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 per pack with two black and two blue inks to keep your notes sharp and versatile.
- • **Ink That Stays Legit:** Super Ink resists water, light, and chemical tampering—perfect for secure, professional documents.
- • **Smooth Flow, No Drag:** Acetal plastic-encased metal ball ensures ultra-smooth ink flow that responds to your writing pressure.
- • **Click-Off Cap Convenience:** Secure, easy-to-use cap design keeps your pens ready and mess-free for on-the-go productivity.
- • **Fountain Pen Feel, Rollerball Ease:** Pressure-sensitive nib adapts line width from 0.28mm to 0.45mm for dynamic writing.

## Overview

The AIR Micro 0.5mm Fine Rollerball pen set features a revolutionary pressure-sensitive nib that mimics fountain pen line variation, combined with Uni's high-quality Super Ink that is water, light, and tamper-resistant. Encased in acetal plastic for smooth ink flow, this 4-pack includes two black and two blue pens with a convenient click-off cap, delivering a premium writing experience ideal for professionals who demand precision and security.

## 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.

Review: Perfect Fountain Pen Imitator - I had to write with a fountain pen for a specific piece, and love my micro ball pen but it didn’t have the right flow to match a fountain pen. When I did purchase one, it just didn’t quite feel right, and so I found these. The pen is very similar to other uniball offerings in shape, and hold. Glides across the paper even more than my microball which took some adjust along with the slower drying ink, but the overall quality was sublime. Compared to a fountain pen you can’t tell the difference unless someone was watching you write with it, and considering it is a fraction of the cost and doesn’t have the problems to go with it, it’s a no-brainer.
Review: Don't come in the uniball paper packaging - I was skeptical as they didn't arrive in the uniball paper packaging. But once they were opened and used, they were fantastic.

## 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 documents.
- This set contains four pens, two with black and two with blue ink.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B59W6ZPB |
| Best Sellers Rank | 27,363 in Stationery & Office Supplies ( See Top 100 in Stationery & Office Supplies ) 110 in Liquid Ink Rollerball Pens |
| Brand | uni-ball |
| Closure | Click-Off Cap |
| Colour | Multicolor |
| Customer Reviews | 4.7 4.7 out of 5 stars (16) |
| Date First Available | 28 Jun. 2022 |
| Ink Colour | Assorted |
| Item Weight | 40 g |
| Line Size | 0_5mm |
| Manufacturer | Mitsubishi Pencil Co Ltd |
| Manufacturer Part Number | UBA-188-M-4BBL |
| Material Type | Plastic |
| Number of Items | 4 |
| Point Type | Fine |
| Product Dimensions | 14 x 5.2 x 1.6 cm; 40 g |
| Size | 1 count (Pack of 4) |
| Tip Type | roller ball |

## Product Details

- **Age range (description):** Adult
- **Brand:** uni-ball
- **Colour:** Multicolor
- **Ink colour:** Assorted
- **Item dimensions L x W x H:** 14 x 5.2 x 1.6 centimetres
- **Material:** Plastic
- **Point type:** Fine
- **Special feature:** Pressure Sensitive
- **Unit count:** 4.0 count
- **Writing instrument form:** Roller Ball Pen

## Images

![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)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Perfect Fountain Pen Imitator
*by J***E on 21 December 2024*

I had to write with a fountain pen for a specific piece, and love my micro ball pen but it didn’t have the right flow to match a fountain pen. When I did purchase one, it just didn’t quite feel right, and so I found these. The pen is very similar to other uniball offerings in shape, and hold. Glides across the paper even more than my microball which took some adjust along with the slower drying ink, but the overall quality was sublime. Compared to a fountain pen you can’t tell the difference unless someone was watching you write with it, and considering it is a fraction of the cost and doesn’t have the problems to go with it, it’s a no-brainer.

### ⭐⭐⭐⭐ Don't come in the uniball paper packaging
*by Z***A on 17 December 2025*

I was skeptical as they didn't arrive in the uniball paper packaging. But once they were opened and used, they were fantastic.

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**Shop now:** [https://www.desertcart.de/products/457250731-air-micro-0-5mm-fine-rollerball-4-pack-black-blue](https://www.desertcart.de/products/457250731-air-micro-0-5mm-fine-rollerball-4-pack-black-blue)

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*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-02-22*