SandPuppy Kneestrap Flexible Heat Therapy Heating Pad is an electric heating strap for relief from knee pain. An active lifestyle can frequently lead to injuries on the joints -the knee, elbow, wrist, or ankle, often leading to discomforting pain. For senior citizens, especially women, knee pain is a daily reality and is experienced as excruciating pain in the mornings and after periods of inactivity. As advised by doctors and physiotherapists, heat application for 20-40 minutes relaxes muscles, warms up and lubricates joints before activity and even eases muscle spasms. Heat therapy is non-invasive and non-chemical, making it absolutely safe for everyone.Uses