we get this mount to go with a  Epson PowerLite 77c 2200 Lumen Multimedia Projector  set up be very easy with plenty of hardware for different environment and need . we need the extension so we could mount it to the cement ceiling over 2 ' above the ceiling tile . the hollow post allow for at least some cable management . it be easy to adjust for the specific projector -lrb- though if you have a decent spatial\/mechanical sense you may find it preferable to avoid the instruction for center the projector on the mount bracket . -rrb- the mount be well make , sturdy , easy to set up , and adjust . we 'll be buy more of these for other classroom over the next year .