Treatment Areas: -only for use in the feet and heels Feature: Powered by 2 AA Battery. (not included) The whole remover is water resistant, include device body, that means you can wash it directly under water, easy to clean Wet & Dry use, convenient to use and store Together with a FREE Extra Grinding Roller replacement. ABS plastic material, more safer and effective than metal scrapers and easier to use than a pumice stone. Ergonomics design, portable and easy to hold to use. 1 x Electric callous remover 1 x Roller grinding head replacement 1 x Soft cleaning bush 1 x Transparent cover 1 x User Manual (Please read the user manual before use)