Safety Technology International, Inc. STI-9640 Exit Sign Damage Stopper, Protective Coated Steel Wire Guard Guard protects a wide range of exit signs from vandalism and accidental damage Super tough construction of 9-gauge polyester coated steel wire Fast and easy installation All installation hardware is included Three year guarantee against breakage in normal use Product dimensions 10.5 in H x 13.5 in W x 2.75 in D