Safety Technology International, Inc. STI-14000NC Universal Stopper Low Profile with Flush Mount, Indoor/Outdoor Clear Multi Purpose Protective Polycarbonate Cover Indoor outdoor low profile cover for flush mount protects against vandalism and accidental damage Protects keypads, intercom stations, emergency buttons, electrical light switches duplex plugs., etc. from accidental activation Cover molded from thick tough polycarbonate material High strength continuous hinge Three year guarantee against breakage of the polycarbonate in normal use.