Ideal for warming up prior to pitching and cooling down afterward. Soothes sore, aching muscles and joints. Non-toxic, countouring, solid therapeutic gel pad maintains an even, controllable temperature. Moist heat therapy increases blood circulation and loosen tight, aching muscles. Moist cold therapy reduces swelling associated with common strains and sprains. Microwaveable and freezable. Remains pliable and contours to the body. Fully adjustable and reusable.