These uni-ball UB-150 Eye Rollerball Pens come in a pack of 5 and have 0.5mm tips for ultimate precision and performance. Producing a fine line of blue ink, this pen is ideal for everyday writing tasks and detailed work.The uni-ball Eye micro 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. This pack uses plastic free packaging making it a much more environmentally friendly choice.. 0.5mm fine line. Pack of 5. Plastic free packaging. Consistent smooth flowing ink. Contains unique fade proof Super Ink. Approximate dimensions (mm) H 179 W 102 D 11