Peerless-AV PRGS-UNV PRGS Universal Projector Mount

2 adjustment knobs to control tilt & roll image alignment & accurately hold image position; Pitches +15deg /-20deg ; Rolls +/-5deg ; Swivels 360deg ; Built-in security screws provide optional tilt & roll lock to prevent tampering & adjustments; Low-profile design allows projector to be flush with the ceiling ; U pitch bracket for easy cable routing; Quick-release mechanism to easily service projector;