*What you get: the package includes 20pieces replacement grinding heads for electric foot grinder, abundant quantity will meet your long-term cleaning needs, and the washable design is compatible with many other brands of electric foot grinders on the market **Ingenious design: these foot grinder replacement heads are divided into 2 colors with 2 different grinding thickness of surface, including black and gray, the black one is suitable for hard skin and hard calluses, cracked heels, and the gray material is more delicate and can be applied to clean delicate skin, the 2 colors of grind head can be selected as needed ***Selected materials: our grind heads added emery particles to refill, will not harm the skin, while the roughness is better than other grind heads, which can effectively remove the dead skin of the feet and meet your daily needs to keep the feet clean and smooth ****Comfortable experience: our product uses a curved grinding head design, which can quickly clean the hard skin on the heels, you can enjoy a comfortable grinding experience by yourself at home, it only takes a few minutes to achieve salon-level results *****Easy to install: easy to install and just need a press, after taking out the old grinding head, align and press the new grinding head into the body; The simple installation method is suitable for people of all ages, you can share these grinding heads with your family or friends