What you get the package includes 20 pieces replacement grinding heads for electric foot grinder abundant quantity will meet your longterm cleaning needs and the washable design is compatible with many other brands of electric foot grinders on the market Ingenious design these black foot grinder replacement heads have a harder grinding thickness suitable for hard skin and hard calluses cracked heels and suitable for thick calluses accumulated all year round 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 salonlevel 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 you can share these grinding heads with your family or friends