-100% brand new and high quality.
-USB or Battery operated callous remover (Battery is not included)
-Easy to use and portable to carry is the best and easiest callus remover 
-Unique Rollers Grinding: Safer and more efficient, easy and fun to use.
-Waterproof Design: Wet & dry use, easy to clean and more comfortable.
-360°rotate running, 300°wide angle, easy and fun to use.