High quality pumice. Sharp to exfoliate easily, remove callus in minute. Remove callus by nature way and more abrasive than traditional lava pumice stone Double Sided coarse pumice stone for best foot scrub solution to suit any type of calloused feet. Ergonomic shape and size design make it easy and comfortable to hold in your hand. For hygienic purposes, do not share previously used pumice stones with others. Do not use on delicate, soft skin or on inflamed, red skin. For pre-ventive maintenance, two times per week is sufficient. It is better to use in the shower or after showering. Replace your pumice stone if it’s showing signs of wear and tear. Soak your feet or other area of callused skin in warm water, optionally adding sea salt or 1-2 drops of Lavender or Jasmine essential oil. Dampen the pumice stone in the same water for ease of use. For the heels, palms, and feet, gently rub the pumice stone in soft circular motion. Wash and dry your hands or feet. Apply a layer of high quality moisturizer or foot cream. FoamDisclaimer: While we work to ensure that product information is correct, on occasion manufacturers may alter their ingredient lists. Actual product packaging and materials may contain more and/or different information than that shown on our Web site. We recommend that you do not solely rely on the information presented and that you always read labels, warnings, and directions before using or consuming a product. For additional information about a product, please contact the manufacturer. Content on this site is for reference purposes and is not intended to substitute for advice given by a physician, pharmacist, or other licensed health-care professional. You should not use this information as self-diagnosis or for treating a health problem or disease. Contact your health-care provider immediately if you suspect that you have a medical problem. Information and statements regarding dietary supplements have not been evaluated by the Food and Drug Administration and are not intended to diagnose, treat, cure, or prevent any disease or health condition. Amazon.com assumes no liability for inaccuracies or misstatements about products.