VideoSecu projector mount for flat ceiling and vaulted ceiling Steel construction; Maximum loading 22 lbs (10 kgs); The height is 5.5" The projector mount can tilt +/-20 degree, pan 45 degree, Swivel 90 degree and roll +/-15 degree The Adjustment arm (16 inch Max arm distance) fit most projectors; Easily release and lock Standard hardware required to fasten the mount to your ceiling and your projector included The VideoSecu projector ceiling mount is attractive and light weight. Durable black finish comes with the latest design in safety, flexibility and value for many of today's most popular LCD projectors for home or office. This projector mount is weight tested at 22lbs and designed with adjustable arms to fit most projector brands with mounting ranges less than 16". The PJ1B is 5.5 inch height. The mount features include +/-20 degree tilt, 45 degree pan, 90 degree swivel and +/-15 degree roll. How can I determine if this mount will fit my projector? Projectors may have 3 or 4 threaded holes for ceiling mount. First make sure that the projector does not exceed the 22lb weight limit. Next, find out the maximal diagonal of the holes. It should not be over 16". In other words, if the maxim distance of any 2 holes (especially diagonally) is not more than 16", then the mount should fit fine.