The surface of the stainless steel wave pattern is large and sharp, and the use is more labor-saving. Stainless steel material , remove dead skin from your feet safely and painlessly. Stainless steel material, easy to clean and reuse. HOW TO USE? Step 1 Add salt to warm water, soak your feet in warm water for more than 10 minutes to soften hard skin. Step 2 Wipe dry and then frustrate the places where you feel rough. There will be white crumbs. Step 3 For better results, it is recommended to apply some moisturizer after cleansing.