Pumi Bar by Mr. Pumice Remove dry, dead skin quickly with Pumi Bar by Mr. Pumice. The bars may be used wet or dry and are washable, reusable and safe with antibacterial solution. Takes only Seconds to Use. Directions: Step 1: Apply a little soap and warm water on area to be cleaned. Step 2: Gently rub pumice on the area. Step 3: Rinse with warm water and let dry Rinse Pumi Bar under hot water after each use. Uses include: removal of callus and dead skin on hands, feet, and elbows; also removes dirt, oil, tar, glue, gum, and paint; works great for cleaning bathroom and kitchen tile.