4 in one. Brush. Pumice. Callus reducer. File. Professional quality. Tool 1 - Nail Brush: Cleans and massages feet and nails. Tool 2 - Pumice Stone: Gently removes hard or callused skin from toes, heels and feet. Tool 3 - Callus Reducer: Metal file smooths skin by removing calluses. Tool 4 - Emery File: Gives a soft, gentle and smooth finish. Made in China.