Fits most bottom-mounted LCD projectors up to 26 lbs. Four adjustable mounting arms attach to built-in mounting nuts on projector casings. Ball and socket joint for flexible tilting and 360 rotation. Quick Release separates the projector from the mounting plate for easy removal. Optional Drop Ceiling Mounting Plate (BRETMP8PLATE), sold separately, allows mounting to a ceiling grid. Wall/Ceiling Mounts & Hardware Type: Projector Mount; Mounting: Ceiling; Depth: N/A; Width: N/A.