Dead Skin Callus Remover Feet Foot Files Clean Care MachineSpecification Speed: Two speed speed regulation Waterproof level: IPX7 Waterproof Rated Power: 6W Charging time: 2hours Working time: 120 minutes Feature 1.3 Replacing the grinding heads 3 different quartz sand grinding heads. The coarse grinding head can remove stubborn dead skin, the medium grinding head can remove rough dead skin, and the fine grinding head can be used for daily care. You can choose a suitable grinding head for your skin, get rid