Design: Ergonomic "wand" or "easy-reach" design to treat various angles, including heels, toes, and the sides of the feet.
Dual Speeds: Typically includes two speed settings (low and high) to customize the treatment.
Interchangeable Heads: Usually comes with two roller heads—a coarse roller for smoothing stubborn calluses and a fine roller for everyday maintenance and polishing.
Built-in Light: Features an integrated LED light to help ensure no spots are missed during use.