This pumice stone is made of 100% natural earth volcanic lava, without any chemical treatment. The holes on the surface are naturally formed during the volcanic eruptions. All the stones remained in their most natural and primitive state. So there is a little difference between each stone, such as hole size, color, weight. But we choose each stone strictly for you. There are some fake pumice stone which are bonded with lime powder in the market. It is harmful to your health.
