Uni-ball ONE P Gel Pen

By Uni Mitsubishi. 

These chunky rollerball pens have a 0.38mm black gel ink line. The ink is quick drying and fade resistant. 

They have a retractable nib, a metal clip, and come in a gorgeous range of barrel colours. 

They are 11.5cm long, and the grip is about 1.5cm wide. 

All pens have black ink.