Uniball One F / P Refill

The Uni-ball One Gel Pen Refill is designed to keep your writing crisp, clean, and consistently vibrant. Its pigment-based ink uses larger particles that sit on the surface of the paper, producing richer dark tones and brighter colors that stand out clearly.

Available in 0.38 mm and 0.5 mm conical tips, this refill delivers fine, controlled lines with smooth performance and quick-drying ink that helps resist smudging and bleed-through. The water- and fade-resistant properties make it a reliable choice for everyday writing, journaling, and important documents.

Fully compatible with Uni-ball One pens, it offers an easy and seamless way to extend the life of your favorite writing tools.

Features

• Pigment-based ink for bold, vibrant color output
• Ink sits on the surface for enhanced clarity and contrast
• Available in 0.38 mm and 0.5 mm tip sizes
• Quick-drying to help prevent smudging
• Water- and fade-resistant ink
• Compatible with Uni-ball One pens

A dependable refill designed to keep your writing sharp, expressive, and long-lasting.

Made in Japan