CGBE Electric Foot Callus Remover 2500x/Min Rechargeable Callous Removers 3 Grinding Heads Waterproof Foot Scrubber File with 2500mAH Battery Remove Hard SkinCGBE Electric Foot Callus Remover 2500x Min Rechargeable Callous Removers 3 Grinding Heads Waterproof Foot Scrubber File with 2500mAH Battery Remove Hard Skin 2 Speed Mode Callus Removers CGBE electric foot callus remove have 2 speeds, 2200x min when at low speed and 2500x min when at high speed. Low speed is suitable for the callus of hands and more delicate skin care. High speed is suitable for stubborn thick callus and dead skin. 3 Replace Grinding