Welcome to our store! 1. Quartz grinding head: Quartz grinding head, groove mineral material, scientifically solves various foot problems. 2. 2 types: equipped with fine roller for polishing and daily maintenance, coarse roller for smoothing stubborn calluses and dead skin. 3. 2-level speed adjustment: 1-level low speed, suitable for sensitive foot skin, 2-level high speed, suitable for rough foot skin of middle-aged and elderly. 4. Ergonomic design: Adopt ergonomic rod design to achieve more natural forward and backward movement. 5. Easy to use: Simple and easy to use for both feet, suitable for heels, toes, sides of the feet and soles. Product type: electric foot file Material: ABS Specifications: 1 pc Battery type: Nimh rechargeable battery (built-in battery) Battery type: AA Battery capacity: 600mah Input voltage: 5v Input current: 1A Charging method: USB charging Level: 2 levels controllable Packing list: 1 x foot file 1 x coarse grinding head 1 x charging cable 1 x cleaning brush 1 x English manual 1 x protective cover for grinding head Package weight: about 300g. Your satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will provide you with the best solution!