Description
The Uni-ball One P Gel Pen Black Ink – 0.5mm is a premium Japanese gel pen designed for everyday writing with exceptional clarity and comfort. Compact, stylish, and highly functional, it suits a wide audience, from students and casual writers to professionals who value precision and reliability in their stationery.
High-Density Pigment Gel Ink
This pen features Uni-ball’s advanced pigment-based gel ink, formulated to sit on the surface of the paper rather than soaking in. As a result, it produces deep, rich black lines with excellent contrast. The ink dries quickly, helping to reduce smudging and maintaining clean results on various paper types, including notebooks and planners.
0.5mm Precision Writing Tip
The 0.5mm tip delivers a balanced line width that feels smooth yet controlled. It works well for note-taking, journaling, annotations, and everyday handwriting. The consistent ink flow ensures dependable performance without skipping or uneven lines.
Compact, Ergonomic Body
Unlike traditional slim pens, the One P has a shorter, slightly wider barrel. This design improves balance and sits comfortably in the hand, reducing strain during longer writing sessions. Its pocket-friendly size also makes it easy to carry in planners, pen cases, or small bags.
Retractable and Practical Design
A convenient push-button mechanism protects the tip when not in use, eliminating the need for a cap. The sturdy clip allows secure attachment to notebooks or pockets, keeping the pen accessible throughout the day.
Refillable for Long-Term Use
The pen is compatible with replaceable Uni-ball gel refills, extending its lifespan and offering a more sustainable option for regular writers.
Combining bold ink performance with a thoughtfully designed compact body, this pen is a dependable everyday writing tool with distinctive Japanese craftsmanship.
Recommended Refills


























































