Uni-ball One UMR-05S Gel Pen Refill - 0.5 mm - Black

Keep your favorite pens performing like new with the Uni-ball One/F/P Refill – 0.5 mm – Black. Specifically designed for Uni-ball One, One F, and One P gel pens, this refill delivers the same bold, pigment-rich ink that made these pens a favorite among writers and creatives.

The 0.5 mm tip size offers a perfect balance of precision and fluidity, while the black pigment-based ink ensures vibrant, fade-resistant lines that write smoothly on standard and recycled paper. A must-have for those who write frequently and want to extend the life of their Uni-ball pens.

Key Features:

• Compatible with Uni-ball One, One F, and One P pens

• 0.5 mm tip – ideal for everyday writing and detailed work

• Bold black pigment ink – water-resistant, fade-proof, and smudge-resistant

• Quick and easy to replace – keeps your pen writing like new

• Eco-friendly choice – extend the life of your favorite pen

• Made in Japan – trusted quality and performance

Stay stocked and never miss a word—refill your Uni-ball One series pen with this reliable, smooth-writing 0.5 mm black gel ink refill.