Versatile Signal Can Be Used To Start Fire Or Signal Rescuers That You Have An Emergency And Help To Locate Your Position. Burns For 5 Minutes At Over 3400 Degrees. Waterproof. Self Contained Ignition, No Matches Required. Weighs Only 5 Oz. 5.25" X 1".table.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }