Pilot Frixion Point Erasable Rollerball 0.5 mm Tip - Black, Pack of 5. This all-in-one pen allows you to write, delete, and rewrite with its erasable gel ink. It features a needlepoint and a soft rubber comfort grip for enhanced writing experience. The ink erases cleanly using friction-generated heat. The pen has an extra fine, 0.5mm tip and is refillable.