Note: If the foot calluses are thick and hard, it is recommended to soak the feet in hot water to soften them before grinding. specification: _x000D_Item Type: Pedicure Tool_x000D_Material: ABS_x000D_Battery: Built-in lithium battery 600mAh_x000D_Size: Approx. 15.5 x 12.2 x 8.4cm / 6.1 x 4.8 x 3.3in (including base)_x000D_Working Voltage: 3V_x000D_Power: 1.8 W_x000D_Function: Remove dead skin and calluses from feet Features: 14 kinds of millstones are interchangeable, simple and easy to replace, convenient to use. 2High?speed rotation does not fall off, safer and more convenient for feet care. 3The millstone can be cleaned, cleaning more convenient, more easy to use. 4After removing cutin, dead skin and calluses, the soles of the feet will clean and the dry and cracked soles will be repaired. 5Small and light, beautiful appearance, easy and convenient to carry for business travel. PackageList: 1 x Handle (with silver steel plate grinding wheel) 1 x Base 1 x Black Grinding Wheel 1 x Blue Grinding Wheel 1 x Pink Grinding Wheel 1 x USB Charging Cable 1 x Manual