Doctors and chiropractors use EMS (electric muscle stimulation) and TENS (transcutaneous electrical nerve stimulation) to gently stimulate muscles, helping to increase circulation and ease pain. Now you can use the same technology at home to help improve circulation in your lower legs and feet. Ideal for anyone with limited mobility, the Foot Revitalize helps relieve swelling, pain and fatigue. Includes two set of electrode pads for additional EMS therapy on your legs. Adapter is ETL approved. Foot pad size 13 X 13 X 2.66.