A pumice stone is used to remove dead skin, and leaves the skin smooth and soft when used on a daily basis. A pumice stone is one of the most important tools when it comes to keep your feet clean! Smooth skin is easier to keep clean, and removing dead skin avoids sweat and bacteria being captured in dry dead skin. The foul odor comes from when bacteria feed on the sweat, causing stinky feet. I suggest using the stone on wet feet at the end of every bath/shower. First soap the foot. The soap clean the foot, acts like a lubricant, and makes sure the dead skin is easily washed of afterwards. Rub your feet with the pumice stone until the foot feels smooth Rinse your foot, and repeat on the other foot. A pumice stone gently scrubs away the dead skin and excess white build up of hard skin on your heels, toes and balls of your feet. You can use it in the shower or bath, just soak your feet in warm water for a few minutes and rub the stone over your rough parts. ** Goods will be send by random design