Cramer's specially designed sports pack comes equipped with an adjustable strap to provide healing power on any portion of the body. It combines hot and cold therapy into one easy-to-use pack. Relieve your body from aches and pains with Pearl Technology that conforms to all parts of the body. The long-lasting temperature retinas therapeutic healing powers for up to 20 minutes. The 7½"L x 4½"W pack can be re-used for both hot and cold uses to tend to pains, aches, bruising, or swelling.