---
product_id: 459048366
title: "AIR - 0.7mm Medium Rollerball - 4 Pack - Black - UBA-188-L"
brand: "uni-ball"
price: "703446₫"
currency: VND
in_stock: true
reviews_count: 12
category: "Uni Ball"
url: https://www.desertcart.vn/products/459048366-air-0-7mm-medium-rollerball-4-pack-black-uba-188
store_origin: VN
region: Vietnam
---

# Water & light resistant Super Ink 0.7mm pressure-sensitive nib Tamper-resistant ink technology AIR - 0.7mm Medium Rollerball - 4 Pack - Black - UBA-188-L

**Brand:** uni-ball
**Price:** 703446₫
**Availability:** ✅ In Stock

## Summary

> 🖋️ Elevate your writing game—where precision meets professional style.

## Quick Answers

- **What is this?** AIR - 0.7mm Medium Rollerball - 4 Pack - Black - UBA-188-L by uni-ball
- **How much does it cost?** 703446₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/products/459048366-air-0-7mm-medium-rollerball-4-pack-black-uba-188)

## 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

- • **Value 4-Pack:** Stay stocked and stylish with four premium black rollerball pens, ideal for office and home.
- • **Ultra-Smooth Ink Flow:** Acetal plastic encased metal ball ensures effortless, consistent writing with every stroke.
- • **Unmatched Ink Durability:** Super Ink resists water, light, and tampering—perfect for secure, professional documents.
- • **Sleek Ambidextrous Design:** Comfortable round body and smooth grip tailored for all-day use by right or left-handed pros.
- • **Precision Pressure-Sensitive Nib:** Experience dynamic line variation from 0.35mm to 0.55mm, mimicking a fountain pen’s elegance.

## Overview

The uni-ball AIR 0.7mm Medium Rollerball 4-Pack features a revolutionary pressure-sensitive nib that delivers variable line widths akin to a fountain pen. Encased in acetal plastic, the metal ball ensures smooth ink flow enhanced by Uni’s Super Ink, which is water, light, and tamper-resistant. Designed for adults with an ambidextrous, sleek round body, this set of four black ink pens offers a premium writing experience ideal for professional and everyday use.

## 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 black gel inked rollerball pens.

Review: Excellent Pens - I love these pens and I use them in the office and at home.
Review: Excellent pen makes you feel like you’re using an ink pen without the mess - These are amazing pens I buy them all the time they write like an ink pen brilliant

## 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 0.7mm ball delivers a line width of between 0.35mm and 0.55mm (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 pack contains four pens all with black ink.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0B59RTTDM |
| Age Range Description | Adult |
| Age range (description) | Adult |
| Best Sellers Rank | 14,245 in Stationery & Office Supplies ( See Top 100 in Stationery & Office Supplies ) 49 in Liquid Ink Rollerball Pens |
| Body Shape | Round |
| Brand | uni-ball |
| Brand Name | uni-ball |
| Closure Type | Click-Off Cap |
| Colour | Black |
| Country Of Origin | Japan |
| Customer Reviews | 4.6 out of 5 stars 103 Reviews |
| Drill Point | Fine |
| Grip Type | Smooth |
| Included Components | 4 pens |
| Ink Base | Water |
| Ink Colour | Black |
| Ink colour | Black |
| Is the Product Left or Right Handed? | Ambidextrous |
| Item Dimensions | 14 x 5.2 x 1.6 centimetres |
| Item Weight | 40 Grams |
| Line Size | 0.7mm |
| Manufacturer | Mitsubishi Pencil Co UK Ltd |
| Material | Plastic |
| Material Type | Plastic |
| Model Number | UBA-188-L |
| Recommended Uses For Product | General writing tasks, such as note-taking, form-filling, and daily writing tasks. |
| Special Features | Pressure Sensitive |
| Style | Stick |
| Unit Count | 4.0 count |
| Water Resistance Level | Water Resistant |
| Writing Instrument Form | Roller Ball Pen |
| Writing Technique | rollerball |
| Writing instrument form | Roller Ball Pen |

## Images

![AIR - 0.7mm Medium Rollerball - 4 Pack - Black - UBA-188-L - Image 1](https://m.media-amazon.com/images/I/71z01nLMSAL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent Pens
*by A***R on 24 November 2025*

I love these pens and I use them in the office and at home.

### ⭐⭐⭐⭐⭐ Excellent pen makes you feel like you’re using an ink pen without the mess
*by J***E on 30 September 2025*

These are amazing pens I buy them all the time they write like an ink pen brilliant

### ⭐⭐⭐⭐⭐ Love these pens
*by R***E on 18 January 2026*

Great pens

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**Shop now:** [https://www.desertcart.vn/products/459048366-air-0-7mm-medium-rollerball-4-pack-black-uba-188](https://www.desertcart.vn/products/459048366-air-0-7mm-medium-rollerball-4-pack-black-uba-188)

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-07-04*