PATENTED FIGURE-8 TECHNOLOGY. Completely surrounds the feet and calves to deliver a fluid, highly effect massage that emulates the expert hands and techniques of highly trained massage therapistsSTIMULATING UNDER-FOOT REFLEXOLOGY ROLLERS. Powerful rollers just under the feet provide a robust massage to relieve soles and heelsCalf Massage Width - 4.5 inch. Calf Massage Height - 12 inch. Operating Voltage : AC110-120V 60 Hz. Power Consumption : 52 WattsNon-Skid Floor Protectors. Floor protectors keep unit in place and ensure quiet operationERGONOMIC STYLING. Enhanced tilt angle perfectly matches the body's ergonomics for maximum comfort. The sleek, modern, and compact unit has been stylishly designed to provide superior and effective relief at home or work.Easy-Carry Handle