Wire guards are an excellent way to protect horn/strobe units against both vandalism and accidental damage. Constructed of tough 9-gauge steel wire coated with corrosion resistant red or white polyester, these guards can take hard knocks in stride. The L Series wire guards provide maximum protection for ceiling and wall mounted horn/ strobes. BACKED BY A THREE YEAR GUARANTEE As all STI protective covers, these guards are backed by a three year guarantee against breakage in normal use. Installation and servicing are easy with all screws and anchors provided. These Stoppers are highly recommended for areas where abuse is severe, or it is imperative that horn/strobe units continue to operate.