This is a used Chief Universal Interface Bracket SLBO, RPA Mount & CMA 012 Pole. The plate, mount  and pole have some very small scuffs but are other wise in good condition. The unit does not include the screws that connect the mount to the projector. The SLBO mount is a 50 pound celling mount universal projector bracket. It has 4 adjustable legs that can be adapted to most any projector. The RPA mount attaches to the SLBO bracket and the celling down pole. It allows for fine tuning of the projection angles and allows the projector to be removed without having to reset the fine tuning. The pole is a 12" down pole.