--- product_id: 457250731 title: "AIR Micro - 0.5mm Fine Rollerball - 4 Pack - Black and Blue Ink - UBA-188-M" brand: "uni-ball" price: "€ 22.91" currency: EUR in_stock: true url: https://www.desertcart.nl/products/457250731-air-micro-0-5mm-fine-rollerball-4-pack-black-blue store_origin: NL region: Netherlands --- # water & light resistant Super Ink 0.5mm pressure-sensitive nib tamper-resistant ink technology AIR Micro - 0.5mm Fine Rollerball - 4 Pack - Black and Blue Ink - UBA-188-M **Brand:** uni-ball **Price:** € 22.91 **Availability:** ✅ In Stock ## Summary > 🖋️ Elevate your writing game with precision and protection! ## 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?** € 22.91 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.nl](https://www.desertcart.nl/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 - • **Ink That Lasts & Protects:** Uni's Super Ink resists water, light, and fraudulent tampering—your words stay authentic. - • **Precision Meets Expression:** Pressure-sensitive nib adapts line width from 0.28mm to 0.45mm for dynamic writing. - • **Versatile & Ready to Write:** Includes 4 pens—2 black and 2 blue—perfect for professional notes and creative flair. - • **Smooth Flow, No Interruptions:** Acetal plastic-encased metal ball ensures ultra-smooth ink delivery with every stroke. - • **Designed for the Ambidextrous Pro:** Comfortable stick shape and click-off cap suit all writing styles and hands. ## Overview The Uni-Ball AIR Micro 0.5mm Fine Rollerball 4-pack features a revolutionary pressure-sensitive nib that varies line width like a fountain pen. Its acetal plastic-encased metal ball ensures smooth ink flow, while the high-quality Super Ink is water, light, and tamper-resistant. This set includes two black and two blue pens, designed for professional, ambidextrous 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 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 documents. - This set contains four pens, two with black and two with blue ink. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0B59W6ZPB | | Age Range Description | Adult | | Best Sellers Rank | 96,185 in Stationery & Office Supplies ( See Top 100 in Stationery & Office Supplies ) 348 in Liquid Ink Rollerball Pens | | Body Shape | Stick | | Brand Name | uni-ball | | Closure Type | Click-Off Cap | | Colour | Multicolor | | Customer Reviews | 4.6 4.6 out of 5 stars (17) | | Drill Point | Fine | | Included Components | Four pens | | Ink Base | Water | | Ink Colour | Assorted | | Is the Product Left or Right Handed? | Ambidextrous | | Item Dimensions | 14 x 5.2 x 1.6 centimetres | | Item Weight | 0.04 Kilograms | | Line Size | 0_5mm | | Manufacturer | Mitsubishi Pencil Co Ltd | | Material Type | Plastic | | Model Name | Uni-Ball AIR Micro | | Recommended Uses For Product | Writing | | 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 | ## Product Details - **Age range (description):** Adult - **Brand:** uni-ball - **Colour:** Multicolor - **Ink colour:** Assorted - **Material:** Plastic - **Model name:** Uni-Ball AIR Micro - **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) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.nl/products/457250731-air-micro-0-5mm-fine-rollerball-4-pack-black-blue](https://www.desertcart.nl/products/457250731-air-micro-0-5mm-fine-rollerball-4-pack-black-blue) --- *Product available on Desertcart Netherlands* *Store origin: NL* *Last updated: 2026-06-21*