Mueller FIR (Far Infrared) 4 Way Stretch Knee Support Size:Small Medium (12.0 16.0 in) Wrap the straps around the Wrap the straps around the back of the ankle and secure Features: Hot water therapy has adjustable temperature with a safety setting (timer) Hot cold therapy improves blood circulation and reduces edema swelling Hot therapy reduces pain and discomfort of neuropathy Effective for pain relief in joints and sore muscles Can be used on the hands and feet (and all other body parts) Covered by Medicare and Medicare Approved Aqua relief system Alternative health therapy aqua relief system is a clinical therapeutic pain management and circulatory improvement system that can be used in the home to help with your diabetes Large X Large (50009) UPC: 074676500096 Material: Hybrid flat knit sectional wrap