Mitsubishi uni Gel Pen Uni-ball ONE Refills

Get the most out of your Mitsubishi uni Gel Pen with these Uni-ball ONE P refills. Available in both 0.5mm and 0.38mm, these black ink refills provide a smooth and precise writing experience. Keep your pen stocked and ready for all your writing needs.

Fits

Uni ball One P and Uniball One