The ActiveWrap Knee Heat / Ice Wrap is an all-in-one versatile wrap that provides effective compression and hot or cold for treating all aspects of the knee and leg. The ActiveWrap Knee hot/cold therapy wrap includes two large 9" x 6" gel inserts housed inside their own nylon covers that can be velcroed anywhere inside the plush compress wrap for more precise treatment. The gelatinous material is specifically formulated to not push away from the point of contact like cheaper chemical-filled gels which helps keep the hot or cold targeted right where it's needed most. The inserts are vacuum packed for durability, and can be repeatedly microwaved or re-frozen without splitting or cracking. The ActiveWrap Knee heat & ice wrap features two 3" wide straps to secure it in place around your knee. It's ideally suited for treating arthritis, strains and sprains, or as part of a recovery program following knee surgery. The product remains cold past twenty minutes and is designed to maintain a more consistent temperature between 40-50 degrees compared to colder models made from chemical formulated gels. For easier shuttling of gels, an optional recharge pack of two additional large gels are available to make shuttling of gels easier for prolonged treatment.