The Diamancel Foot File set include all numbers, 10 and 11 foot files and number 20 foot rasp. The number 10 file smoothes away dry and rough skin, calluses and corns for a soft finish without using a blade. Diamancel - #11 Foot Buffer removes dry and rough skin, leaving feet soft and smooth. Comfortable easy to hold rubber handle provides excellent control. Diamancel #20 is most powerful file to safely remove hard corns and major calluses without having to use a blade. Ideal for dry thick cracked heels.