Easy Ice Reusable Ice and heat packs.keeps cool an fresh. 3 sheets, 4-ply. chillers for cooler bag , ice box Long lasting, reusable,washable, flexiblle, foldable and hygeinic Ice pack Keep in freezer for ready use as first aid for children, sports injury and minor burns Use in ice box to carry food, snacks, drinks,, stays cool long time during outings.For shipment of temperature sensitive items in pharmacetical, agriculture and other industries Also works as warmer. Heat in microwave or in boiling water light and paper thin,insert in an envelope to gift/courier