Vogels PPC 1540S Projector Ceiling Mount - Silver (400 to 550mm, Max 20kg)Precision Made The PPC 1540 is a height adjustable projector mount specially designed for the latest generation of projectors weighing up to 20 kg. This projector interface is equipped with fine tune adjustability for precise alignment to the projection surface. Once aligned, the projector stays in position. Turning the unique friction ring will eliminate all play from the interface connections, making the mount a solid and very stable solution.