Features: 3 interchangeable grinding heads ： 3 grinding heads are made of high quality quartzs nmicro-mineral crystals and are of different thicknesses (coarse grinding head for stubborn calluses, medium grinding head for roughed, dead skin, fine grinding head for daily skin care). You can choose the appropriate replacement head according to the hardness of your cornea. 2 speed with one button ： The electronic callus rasp has a powerful motor with high torques. You can easily switch-it to 2 speed. Low speed is suitable for mild dead skin or sensitive skin care. High speed is suitable for stubborn thick callus or deep cleansing. Professional equipment will help keep your heels and feet soft, health. Electric Foot Callus Remover can help you remove dead skin and hard skin for feet. It will increase your self-confidence and give you the respects in social life. Don’t hides in closed shoes or embarrass the moments on your lame feet. Through simply care, will make your feet look health, clean, attractive, and keep delicate and smoothes. USB charging : the USB charging time is 2 hours and can work for you about 90 minutes. The LCD display on the housing of the corneal rasp allows you to see exactly the remaining battery level. Thanks to the wireless design, you can also use the electric callus remover. also Waterproof & Easy to Clean ： High water resistance, you can enjoy a comfortable massage even in the bathroom. All parts of the foot care device can be rinsed under running water. The attached removal tool and cleaning brush will help you disassemble the grinding heads easily and remove the debris that has been collected, ensuring you have a hygienic and comfortable experience. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement     Description: Net weight: 156g Gross weight: 369g Size: 18*15*5.5cm Battery capacity: 1200mAh Accessories list: Foot Grinder*1, spare grinding head*2, charging cable*1, manual*1, foot file*1, curved file*1, double-sided sandpaper file*1, planer knife*1, 3pcs-blade, Nail file*1, dead skin fork*1, cleaning brush*1, pedicure knife*1, silicone sheet*1 Package List: 1 Set Electric Vacuum Adsorption Foot Grinder