Raw natural pumice stone of volcanic origin. Instructions for use: Used during the bath or hammam, on damp skin, to soften calluses and remove dead skin on the heels and points of support. It smoothes the calluses of the feet thanks to its roughness. Always moisten the stone before use and massage by rubbing gently on the areas to be treated. To improve the treatment, coat the pumice stone with black soap. Visible effect after a few uses and well-being guaranteed. To keep the pumice stone in good condition longer, soak it in water for 24 hours before first use.