cell pens have unique elasto grip and a lightweight body makes it easy to write with comfortably for a long time. Use it to make writing exams a pressure-free experience. It has a tip of about 0.7mm and is available in blue black and red ink colours.The ball point pen simply rolls ink onto the paper by means of a small ball bearing. The ball bearing is held in place at the tip of the pen by means of a housing which is crimped over the widest portion of the ball.