Gently rub the pumice stone on the affected areas of your feet in a circular motion to remove calluses, corns, and dry skin. Avoid applying too much pressure to prevent injury. After use, clean the stone with warm water and allow it to air dry.Pumi Bar: Anti-bacterial Solution Safe!For beautiful, healthy skin: smooths and softens for beautiful feet - great for hands and elbows tooExtra Coarse / Medium for custom use on various parts of the foot.Larger size, can cut in half to put one in the cupboard for future use Use wet or dry - takes only seconds to use