The Exit Sign Damage Stopper® is a protective wire guard that helps protect a wide range of exit signs against vandalism and accidental damage. For ceiling mount application, the wire guard is constructed of 9-gauge, welded steel wire, coated with a tough, corrosion resistant polyester shell. As all STI protective covers, this Stopper is backed by a three year guarantee against breakage in normal use. Installation is simple with anchors and screws provided.