Half dome Plexiglas safety mirrors protect personnel and others from collision and other accidents while navigating through high-traffic intersections and corridors. Safety mirrors are commonly found in hospitals, clinics, rest homes, medical facilities, industrial warehouses, retail and commercial facilities. Plexiglas mirrors are made of virtually unbreakable lightweight acrylic with a bright image that will not fade with time. Choose from several diameter sizes below for the best coverage area that fits the project requirements.