Remove Callused Skin: Effortlessly buff away tough, callused skin with the Dr. Scholl's Callus Remover Electronic Foot File, designed for gentle and quick revitalization. | Rotating Roller Head: Glide the electronic file over your feet as the 360-degree rotating roller head works its magic, eliminating rough, hard skin and leaving your feet smooth and comfortable. | Compact Design: The Dr. Scholl's Callus Remover Electronic Foot File is the perfect size for travel so you can achieve soft, smooth feet wherever you go | Hassle-Free: Conveniently includes 4 AAA Batteries