Actimove® Arthritis Care Knee Support, 2X Large, 1 Each Lights 5 inches * Height from 413116 5 inches * Height from floor to top of back: 53 inches * Height from floor to top of seat: 22 Allows patients to select from ten pre set body icons for targeted therapy making it the easiest and most effective TENS device available on the market today * With the press of two buttons the easy to use device is ready to operate effectively based on the area of the body that is being treated * Comes complete with AC adapter for effective therapy on the go * Simple to operate portable device for pain management * 2 button operation * Device has ten pre set body part selections making it easy for patients to target certain areas in pain * Body part selections include: neck shoulder mid back low back elbow wrist hip knee ankle and foot * Individual body part selections have a customized treatment program based on researched protocols * Comes complete with carrying case two sets of lead wires 9 volt battery AC adapter manual and pack of four self adhesive reusable electrodes * Power Source: Standard 9 volt battery or AC adapter * Dimensions: 4 Ceramic fibers retain and reflect body heat for soothing warmth to help relieve pain Extra extra large is for knees 19¼ 22 inches in circumference