Product description : 4.5 * 8.17 cm Color: white Material: ABS Package content: 1 * foot grinder 3 * grinding head Dust Cover 1 * Cleaning Brush 1 * Head Changer 1 * USB Data Cable 1. Electric Callus Remover: The grinding surface of the electric callus remover adopts a curved surface design, which can increase the skin contact area and thoroughly remove dry skin, calluses or calluses on the soles of the feet and heels in seconds, precisely, painlessly and gently, without Risk of injury. Press for 2 seconds to turn on.2. 3 Grinding Heads: We have 1 fine roller head, 2 coarse roller head in this set. The roller of the callus remover can be easily replaced and cleaned. A total of 6 modes can meet all your callus removal needs and help you.3. Two Speed Speed ControlPress the switch to display the green light. I is low speed first gear. Choose II as the high speed gear and choose the speed according to your preference.4. USB Rechargeable Battery & Dust-free Design: 1000mAh capacity battery for long-time use. It can be connected to a PC, adapter, power bank, etc. for charging. Motorized with a built-in vacuum cleaner, our callus remover can pick up most of the dust when rubbing your feet. Don't worry that the dead skin will be scattered and difficult to clean 5. Waterproof and Ergonomic: Callus removal can adapt to all kinds of humid environments. You can enjoy foot care in the bathroom, not submerged in water. A perfect gift for your family and friends. Special ergonomic non-slip design, you don't have to worry about falling.