The Uni-ball Eye Pen has been one of the world's favourite rollerballs for over 20 years. The Eye Fine contains waterproof, fade resistant and tamper proof ink. The unique 'uni-flow' system ensures a consistent and continuous ink flow right to the last drop. The Eye makes the perfect companion for people looking for a flawless writing experience. 0.7mm nib. Contents:5 Black Rollerball Pens. For ages 3 years and over. EAN: 5012788037043.