The PremiumSun half dome hemisphere mirror is designed for eliminating blind spots, preventing theft and improve general surveillance in all types of retail stores, car parking areas, warehouses, factories, loading bays, offices and any place where visibility is restricted. This mirror is for indoor use only, they are easy to install and are is designed to be mount onto a ceiling directly or to be suspended from a high ceiling in an area such as a warehouse. You could also mount it onto a wall.