PILOT FriXion Ball 2 Erasable 2-Color Ballpoint Pen (0.38mm / 0.5mm) 1 piece FriXion ballpoint pen with erasable writing. It has a slim body with a maximum diameter of 12.2 mm for easy carrying, and a smooth, step-free grip that makes it easy to insert into a pen holder such as a notebook. The clip uses Pilot's original lift clip. The clip can securely hold even thick objects and will not break even after 100,000 insertions (according to the manufacturer's test data). The color disappears when rubbed with the rubber on the back of the pen after it dries. Since the color is made colorless by frictional heat, there are no eraser shavings and the same spot can be rewritten over and over again. *Cannot be used for writing certificates or addresses.