Brushman Pumice Stone Treat your feet with the safe, naturally occurring lava stones and keep your feet feeling smooth. It can promote blood circulation, relieve fatigue, and improve sleep. Pumice stone should be used on wet skin so preferably soaked your feet for some time in warm water to soften skin, wet the pumice stone in soapy water at the same time then rub it over an area in a circular motion. Use the essential oil or body lotion to care for feet after use. The numerous and random small holes on the pumice stone can scrub your skin with no dead angles.