specification: Item Type: Foot grinder_x000D_Material: ABS_x000D_Battery Specifications: 4 x AAA batteries (not shipped with batteries)_x000D_Uses: Foot scrubbers to remove dead skin calluses Features: 1EFFICACY: Real and effective, can effectively remove dead skin, thick calluses, do not leave marks, easily remove dead skin on the bottom of the foot, foot flakes, to prevent the accumulation of dead skin on the foot into the stratum corneum. 2MATERIAL: Selected silica to create, no pulling sensation, do not hurt the skin, just a light grinding, you can remove the aging keratin, coarse and fine grinding head, while massaging acupuncture points. 3GENTLE: Rounded and gentle particles, grinding does not hurt the feet, arc design more closely to the foot skin, flat grinding head can contact 86% of the foot area, the arc grinding head can contact 98% of the foot area. 4POWERFUL AND FLUSHABLE: Removable flushable abrasive head to avoid harmful substances breeding, lasting power, built in powerful motor to effectively remove calluses. 5GIFT: You can give this electric foot grinder to your friends, wife, parents, so that they will no longer be bothered by the aged calluses on their feet. PackageList: 1 x Foot Grinder 1 x Replacement Head 1 x USB Cable 1 x Instruction Manual 1 x Brush