This is a Brand New, solid, durable, all steel constructed projector mount for all kinds of projectors. It fits most projectors available in the market. There is no need of any mounting screws on the projector. Just sit the projector on the tray in the up-right position, or upside down position, then tight the bracket to hold the projector. After installation, the projector can be titled up to 15 degree in any direction, and 360 degree swivel to your desire position. So you do not have to worry about the correct position of the ceiling holds when you drill. Nor need you to re-drill the ceiling holds because of the incorrect positioning. The package includes ACC 809 extension tube, adjustable 41"-71".