The PRB-18S is a universal ceiling mount for projectors up to 13.5kg/29.7bs. Tilting ceiling plate for flat and sloping ceiling application. It offers multidirectional positioning with four adjustable support arms that can fit a wide range of mounting holes. The quick release connector allows the projector to be installed quickly and then easily released for maintenance, without re-alignment. The retractable aluminum column provides height adjustment for your different choices. This projector mount is perfect for use in classrooms, boardrooms, hotels, bars and restaurants or anywhere a projector needs to be mounted.