Gently remove corns and callouses . . . buff away rough patches that snag hosiery. Includes 1 skin buffer disc, 1 skin remover/nail shaper disc and massager; Plastic 6" x 2 3/4" x 1 1/2"; uses 4 AA batteries, not included. Set of 24 refill disks available separately - 12 coarse, 12 fine.