The OEM Pilot FriXion Ball 31553 Erasable Gel Pen allows you to erase and rewrite repeatedly without damaging documents. Its thermosensitive gel ink formula disappears with the erasing friction of the rubber plug eraser on the pen. Erasing leaves no residue or debris, enabling you to write on the same spot that has been erased. This gel pen delivers smooth writing and is not recommended for exposure to extreme temperatures or for signatures, examination papers, or official documents where writing needs to remain permanent.