The Pro Power 20K is a high quality manicure and pedicure file. Its cordless design allows for convenient portability. The compact unit clips conveniently to your belt allowing freedom of movement. It can also sit flat on the Nail Station. 30,000 RPM, Rechargeable with up to 10 hour battery life. Variable speed control. Lightweight hand piece with locking chuck, easy bit change. Hight torque, quiet operation with no vibration.