Premium hot and cold therapy sleeves gently roll on completely covering your limb. The sleeve design easy to use and stays in place bands free. The 360 coverage treats the entire circumference of the injured area, delivering hot or cold deep into soft tissues where its needed. Our premium medical grade materials stay ultra soft when chilled or heated allowing it to mold to the body. Together, these features reduce treatment time, provide faster pain relief, keep swelling to a minimum and greatly increase overall effectiveness. Great for arthritis. Heats in the microwave in about one minute. Use cold for fast first aid for acute soft tissue injuries and other conditions that require cold applications to combat swelling, pain and bruising. Latex free, non-toxic and can go from freezer to microwave and back over and over again.