Color: White, Black. Material: ABS, Sanding Discs, Sanding Bands. Power Supply: Type-C Recharging. Charging Voltage: DC 5V. Working Voltage: 3.7V. Rated Power: 2W. Rotation Speed (Geared Motor): 550 RPM. Size: 15*3*3cm(5.91*1.18*1.18in). Package Includes: 1pc Electric Foot Grinder, 1pc Nail File Head, 10pcs 120/180 Grit, 10pcs Sandpapers, 1pc Type-C Cable. Utilizing a power transformer to start the motor, this electric foot grinder rotates a specially designed grinding head to safely address calluses, thick skin, and nails, providing effective foot care. Prior to use, soak feet in warm water to soften dead skin. Choose the appropriate grinding head and adjust pressure and angle for optimal safety and results. Adjustable Speed Settings: Long press for 1st gear, short press to increase up to 6 gears, then return to 1st. Offers seamless customization for user needs. Reverse Rotation Feature: Short press the reverse button to enable reverse operation from 1-6 gears, providing versatile functionality for different requirements.