... 2. Simply remove calluses and corns gently and easily 3. It comes with 3 attachments 4. Lightweight Takes 4AA batteries (not ... and easily,shape fingernails and toenails too3. It comes with 3 attachments,hard skin remover,rough skin buffer and massager,4. Lightweight ... , easy to use,geat for knees and elbows, too. Electric Callus Remover