SAPPHIRE UNIVERSAL TELESCOPIC PROJECTOR MOUNT 70-120CM
It is designed to overcome most of the issues that face installers on a day to day basis and should be the only mount you will need.
Designed with flexibility in mind for those times when you realise that to get the picture perfect you need to move the projector an inch or two. Simply slacken the arms.
Very easy height adjustment with the simple turn and positive lock on the telescopic pole.