36.6x22in Electric Heating Wrap for Neck Shoulder Fast Heating Pad Mat Heated Neck Wrap for Back Pain Relief with 6 Temperature Settings 4 Timer ModesDo you suffer from chronic back pain, cramps, or muscle stiffness frequently in cold winter? This heating pad is a form of heat therapy that promotes consistent circulation throughout the body to effectively relieve such body discomfort. The portable design allows you to use it anywhere as long as power source is present. You can customize the level of heat or the timer according to your own needs. All round Heating for Pain Relief: With a size of 36.