The Chief RSMB284 is a mini elite custom projector mount (lock B) ideal for smaller projector models. This custom miniature version of the RPA Elite mounts includes all the same great features in almost half the size. The RSMB284 features Centris Technology that enables effortless fingertip positioning and self-adjusts to support different projector weights. It has MicroZone adjustments that make projector registration fast and precise (including flush mount installations).