Uni One 3 0.5mm Ballpoint Pen

No gimmicks—just dependable tools that start every time and hold up to daily use. Designed for ease from first touch: comfortable textures, balanced weight, and smooth mechanisms that feel natural. Pieces work together so it’s simple to jot, mark, sort, and store without breaking your flow.

Durable materials keep things tidy through busy days, while a clean, timeless look fits any desk, bag, or workspace. Refillable and reusable where it matters to cut waste and keep your favorites in play. Quiet, reliable stationery that supports focus and momentum—wherever work happens.

Uni, a division of Mitsubishi Pencil Company (Japan), is famous for high-performance pens and pencils. Its products, including the Uni-ball series, combine innovation, smooth writing, and reliability.