specification: Item Type: Foot callus remover_x000D_Material: ABS_x000D_Power Supply: 4pc AA battery(not include)_x000D_Efficacy: Removes dead skin and calluses. Features: 1REMOVES HARD CRACKED: Durable micro grated outside removes hard, rough, cracked, dry and calloused skin for soft, beautiful feet with ease. 2ABRASIVE PARTICLES: Make it more silky and tender. Abrasive particles make it more efficient to remove dead skin, super durable. 3TOUCH UNEVEN AREA: Fit foot skin curve, touch uneven area, remove more foot skin, safe without hurting skin. Rub the foot back and forth where it needs to be polished. 4SILKY AND TENDER: The glass care grinding plate is rubbed back and forth repeatedly on the position of the foot to make it more silky and tender. 5POWERFUL: Tired of grinding your feet with other tool. Give way to happy feet in minutes with this callous remover. Remove more foot skin, safe without hurting. PackageList: 1 x Foot Callus Remover 2 x Replace Head