Chief PG3A project mount Ceiling BlackPG3A, Extra Large Projector Security Cage A top security solution that fully encloses the projector mount in a locked steel cage to prevent theft, as well as recreational damage. Features Fully encloses projectors in a locked steel cage to protect from theft or recreational damage Saves unnecessary costs and hassles caused by projector mount theft Mount with pre existing installations without disturbing projector settings Adjustable front opening