Bilateral Ice Bag Facial One Size Fits Most 13 X 30 cm Polyester / PolyethyleneIce Bag Bilateral Facial One Size Fits Most 5 X 12 Inch Polyester Polyethylene Polypropylene Polyurethane Spandex Adhesive Aluminum Reusable Two single use instant cold packs require no special preparation or refrigeration. Ice bags are connected by straps which can be used to affix around head with hook and loop closures. Store at room temperature and activate with a firm squeeze and a gentle shake. Each bag is 5 x 12 inches.