Volcanic lava stone will never lose its effectiveness or shape. The natural lava stone can safely exfoliate dry and dead skin on the body, hands and especially the feet. This simple but amazing small stone, which fits well in the hand, is light and its surface consists of tiny holes. It is the safest and most natural way to exfoliate and smooth the skin of the body, hands and feet. A therapeutic blend of basalt minerals, silicon, magnesium, iron and oxygen that creates the holes in the stone easily removes dry, dead skin from the body, hands and feet. They are essential to your shower routine.