EARTH THERAPEUTICS PUMICE BRUSH NATURAL SIERRA IS A PUMICE STONE AND NAIL BRUSH IN ONE. THE LIGHT POROUS STONE FILES AWAY DEAD SKIN WHILE NATURAL BRISTLES EFFECTIVELY CLEAN THE NAIL BED. THIS PUMICE BRUSH SOFTENS HARD SKIN AND HAS NOT BEEN TESTED ON ANIMALS. EACH PACKAGE OF EARTH THERAPEUTICS PUMICE BRUSH NATURAL SIERRA CONTAINS ONE BRUSH.