Feature: 1. Three gears of strong power, users can choose different speed gears according to the thickness of the dead skin. The three gears are adapted to different stratum corneum. Only the dead skin is worn without hurting the stratum corneum. The upgraded version is safer and more intimate. 2. The streamlined sleek design and the beautiful body fits the hand shape, easy to grasp and operate, ergonomic design, natural hand grip, beautiful and not tiring to use. 3. Four different abrasive particle polishing heads solve the problem of dead skin calluses of different thicknesses on the feet. 4. USB charging, get rid of wire constraints, simple and portable, ready to use. 5. The detachable and washable scrub head can be cleaned immediately after wash, effectively solving the problem of residual dander and avoiding the growth of bacteria. Specification: Material: ABS Voltage: 3.7V Rated power: 5W Battery capacity: 2200 mAh Motor revolutions: 1000-1300 RPM Charging time: 4-5 hours Use time: 1-2 hours 3 speed gears: Low speed: 1000 RPM, medium speed: 1100 RPM, high speed: 1300RPM Cable length: 70cm2cm Package Content: 1 x Main device 4 x Replaceable rollers 1 x USB cord 1 x User manual