Professional metal foot filer effectively removes thick and rough callus for effortless fast results. Easy handle designed with a non - slip grip. Metal patented technology designed to protect the soles of your feet. Gently exfoliates cracked heels and calloused skin. Our metal foot filers are water and rust-resistant, saving you time and money with this long-lasting powerful metal foot filer. Can be sterilized and washed making it hygienic for both home and spa use.