... safety, conveniently disassembles.· Transmission system adopts the structure of dual absorption of shock, Extremely quiet and smooth - No Vibration.· ... and over current protection intruction in machine. 301 Electric nail drill &manicure machine &nail art machine & 25000 RPM1,Easy to use ... No Vibration,5,Fashion design for comfrt grip,6,Nail machine stand inclued, 7,Foot pedal for easy operation . ...