Using nothing more scientific than the cooling effect of evaporating water this remarkable bandage can bring lasting relief to all sorts of strains sprains bruises bites and other trauma the semi elastic self adhering bandage is saturated with a cooling hydrophilic water seeking gel wet the bandage wrap it around the afflicted part and enjoy the distinct cooling effect for up to 6 hoursre useable time and againbandage can be cut to wrap fingers etcnon toxic and latex free48 x 2 121