Uni-Ball One F/P Refill

The Uni-Ball One F/P Refill is a black gel ink with a seamless flow. The vivid silky ink is fast-drying and bleed-resistant—ideal for fast writers who are prone to smudging the page.

It is the stock pen cartridge for the Uni-Ball One F Gel Pen (0.38mm or 0.5mm) and the Uni-Ball One P Gel Pen. Pens sold separately. 

1 refill.

Choose from 0.38mm or 0.5mm tip. Black or Blue-Black ink.