SmartAppGuided Electric Pumice Foot Smoo. Benefits: Professional foot care at home, whenever you want. User-friendliness paired with innovative technologies in a handy electric device. Smoothes the skin on every part of the foot in seconds. Exfoliates mildly but effectively. Removes calluses and rough skin. Durable pumice stone for long-lasting use. Features: Adjustable Spin Speed. Dry and Dead Cell Removing System. Easy-Exchange Head. Long-Lasting Stone. Painless Exfoliation System. Professional Pedi Care & VelvetSole System. Ultra-Gentle Callus Removal. :