The UB-157 Eye Fine writes with highly secure, water-resistant ink that will not fade over time. This pigment ink therefore protects against document tampering. Enabling fluid, skip-free handwriting, this liquid ink is fast drying so prevents messy smears and smudges. Uni-ball\'s Eye pen has been one of the world\'s favourite rollerballs for over 20 years. The uni-ball Eye fine contains uni Super Ink, which is fade resistant, water resistant and tamper proof. A unique \'uni-flow\' system ensures a continuous flow of ink right down to the last drop. . Medium (0.7mm) line. Contains unique fade proof Super Ink. An everyday use pen in the home, work or school