The Uni-ball Eye Medium Pen is one of the world's favourite rollerballs. This pack contains five quality black ink pens with a Uni-flow system that allows for a constant flow of ink, right down to the last drop. The ink is high quality Super Ink, which is water resistant, fade resistant and tamper proof. It's a pen, perfect for everyday use, whether at school, work or home. . 0.7mm line width. Fade resistant. Water resistant. Tamper proof. Uni-flow system. Approx. Dimensions...