RECHARGABLE ELECTRIC FOOT GRINDER! Callus eliminator uses a built-in vacuum that buffs away and sucks up dead skin at the same time. Products benefits ¡Gently buffs away dead hard skin in minutes, leaves you super smooth feet skin ¡Ergonomically shaped for the safe and professional home use. Instruction: Pedicure Set What you get:the package includes Foot Grinder and10 pieces replacement grinding heads for electric foot grinder, abundant quantity will meet your long-term cleaning needs, and the washable design is compatible with many other brands of electric foot grinders on the market.