uni-ball Air UBA-188 Limited Edition High-Tech Rollerball Pen - Precision Writing Set

Elevate your daily writing experience with the uni-ball Air UBA-188, a masterpiece of Japanese stationery engineering. Designed for professionals and enthusiasts who demand both style and substance, this limited edition series features "black technology" mechanics that adapt to your unique writing style. Whether you are signing important contracts or sketching ideas, the UBA-188 offers a sensation as light and effortless as writing on air.

Key Benefits

Adaptive Line Width Control:** Unlike standard rollerball pens, the UBA-188 allows you to intuitively control line thickness. By adjusting your pressure and the angle of the pen, you can transition from fine, precise lines to bold, expressive strokes with ease.

Frictionless Resin-Wrapped Tip:** The nib is uniquely encased in a specialized soft resin rather than traditional metal. This innovative design significantly reduces friction against the paper, ensuring an incredibly smooth, scratch-free glide that feels fluid and responsive.

Advanced Ink Regulation System:** Equipped with a precision internal flow regulator, the pen maintains a consistent ink supply from the first word to the last. This system prevents blotting, skipping, and uneven saturation, even during rapid writing.

High-Capacity Direct Liquid Reservoir:** The "direct-liquid" design utilizes a large internal ink chamber, providing a significantly longer writing life compared to standard cartridge-based pens. The transparent window allows you to monitor your ink levels at a glance.

Sophisticated Business Palette:** The limited edition series comes in a range of professional, deep-toned inks including Blue-Black, Brown-Black, and Deep Red, housed in a minimalist body with elegant gold-lettering accents.

Key Specs

Model:** uni UBA-188 (Air Series)

Tip Type:** High-tech resin-encased precision nib

Ink System:** Direct liquid flow with internal buffer regulation

Grip Design:** Ergonomic soft-touch protective sleeve to reduce hand fatigue

Ink Colors:** Professional business tones (Blue-Black, Brown-Black, Deep Red)

How to Use

For Fine Lines:** Hold the pen at a more vertical angle and apply light pressure. This is ideal for detailed note-taking and technical drafting.

For Bold Lines:** Tilt the pen at a slight angle and increase downward pressure. The resin tip will flex slightly to allow more ink flow, perfect for signatures and emphasis.

Maintenance:** Always click the cap firmly into place after use to protect the specialized resin tip and prevent the liquid ink system from drying out.

Care & Safety

Storage:** Store the pen horizontally or tip-up to maintain optimal pressure within the ink reservoir.

Temperature Sensitivity:** Avoid leaving the pen in high-temperature environments (such as a car in summer) or in direct sunlight, as extreme heat can affect ink viscosity and flow stability.

Travel Tip:** When traveling by air, ensure the cap is securely fastened to accommodate changes in cabin pressure.

Notes

"Writing as light as if in the air."