Features:<br />1. Ergonomic soft grip、 non-slip design to increase comfort<br />2. Unique Micralumina go crusty particles gently and effectively wheel rotates easily remove crusty feet<br />3. At home、 just a few minutes you can have smooth and bright feet<br />4. crusty roll to be replaced regularly、 hygienic and convenient<br />5. crust machine with 4 AA batteries<br /><br />Instructions:<br />Just gently slide a few minutes on the crust、 remove dead skin and can instantly create stylish beauty full effect<br />Each wheel can be used about 12 times. To be used once a week to hardcover machine、 for example、 about three months will need to replace the tires