Heat / cold therapy is used to relieve pain and inflammation associated with muscle strain or injury. The gel wrap is filled with tiny pearls that absorb heat or cold and can hold them for about 20 minutes. In addition to relieving pain and muscle tension, gel packs can also be used after surgery-induced edema. Gel packs are extremely convenient to use after heating or freezing, the compress is not wet. The material of the compress is non-toxic and odorless. The sports wrap can be applied to any part of the body. Due to its large size, the back wrap is divided into three segments. In addition, it has a comfortable Velcro strap to attach it to the back. The beads can be moved from one segment to the other if a given area of the back needs more heat / freezing than another.