Microwave for warm therapy or freeze for cold therapy. Designed to allow for leg movement when worn. Soft gel pack features a cloth cover Hand washable. 8" elastic strap with hook & loop closure. Designed to allow leg movement when worn. Elastic strap with hook and loop fastener allows for easy attachment. Instructions attached to item. 10" L x 8 3/8" W x 1/2" H. Price includes 1 colour; 1 location imprint.