Peerless-AV\\'s PRGS series adjustable height ceiling kit provides an all-in-one solution. it incorporates the PRGS projector mount and lightweight aluminum adjustable extension column. It\\'s a quick and easy installation. . 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