The OEM Pilot FriXion Ball Gel Pen is a pack of 8 erasable gel pens that allow you to erase and rewrite repeatedly without damaging documents. Its thermosensitive gel ink formula disappears with the friction of the rubber plug eraser on the pen, leaving no residue or debris. This gel pen delivers smooth writing and is not recommended for exposure to extreme temperatures or for use on official documents where writing needs to remain permanent.