This is the Dr. Scholl Velvet Smooth Electronic Foot File. The electronic roller head rotates at high speed, quickly removing hard calluses from the soles of your feet. The roller head, containing marine mineral powder, effectively removes dead skin cells, leaving your feet soft and smooth. The ergonomic grip is easy to hold and use. You can easily care for a wide area of your heels, as well as small areas like corns. Used once. Will be cleaned and shipped.