Features： 1、Quick Heating: This knee heating pad heats in few seconds, and it can effectively relieve the knee pain caused by arthritis and injury. 2、3 Modes: This heated knee brace wrap provides 3 temperature modes, and the temperature can be easily controlled by yourself. 3、Wide Application: This knee warmers are also suitable for calves, thighs, and arms. Effectively Improving blood circulation and is effective in relieving knee pain and muscle stiffness. 4、Ergonomic Design: This knee heating pad features ergonomic design that ly fits the curve of your knee, more flexible to move. 5、USB Power Supply: This heated knee brace wrap can be powered through USB cable, providing great convenience. Specification： Item Type: Knee Heating Pad Material: OK Fabric Application: Improving Blood Circulation, Relieving Knee Pain and Muscle Stiffness. Product Size: Approx. 59 x 25cm / 23.23 x 9.84in ( Manual Measurement, Slight Error May Exist ) Package List： 1 x Knee Heating Pad 1 x USB Cable