What is a pumice stone?A porous, abrasive stone made from cooled volcanic rock and water. What is a pumice stone used for?It is perfect for softening and sloughing away dead, dry skin. This is a vegan product. DIRECTIONS FOR USE: Use this pumice stone regularly on any dry, calloused skin on your feet and enjoy softer, smoother skin. After using the pumice stone, apply the Whipped Shea Butter or Mango Body Butter to your feet and slip them into socks at night. Wake in the morning to softer, happier feet!