This is the multi-use pad that delivers targeted heat or cold therapy to help soothe arthritic pain. It contains a unique gel that maintains heat when warmed in a microwave or coldness after being cooled in a freezer. Ideal for use on larger body parts such as the back and upper leg, the pad can also be laid upon or draped over a shoulder to direct hot or cold therapy, precisely where it's needed. Its Lycra fabric feels soft against the skin. 17 L x 12 W.