This Sunbeam® Hot + Cold Therapy Wrap delivers soothing heat therapy or anti-inflammatory cold therapy for common muscle pain and joint pain. The 30.7 x 7.5-inch wrap contours to the shape of the knee for targeted pain relief. Microwave removable gel pack for soothing heat therapy to help accelerate tissue healing and relax sore muscles associated with muscle tension and stress. Freeze removable gel pack for cold therapy to reduce inflammation from acute injuries such as strains, sprains, bumps, and bruises. The wrap stays in place with elastic ends that securely fasten to the pad for a snug fit, hands-free use, and pain relief on-the-go. The entire wrap is fully machine washable for easy care—just remove the gel pack.