The ultimate way for your screen to be installed in the ceiling,Out of sight until it’s time to go to the movies, your screen will magically roll down from the ceiling at the push of a button. With a self closing trapdoor mechanism and fully finished with Interfit ceiling edge cover strip and underside in low sheen white, the interfit trapdoor projection screen is an easily fitted, single trade installation unit. It has benefits like hidden installation, quiet operation, automatic door,simple single trade installation.