Peerless PRS Series PRS-EXB 12.6-Inch to 20.6-Inch Adjustable Projector Ceiling/Wall Mount Kit (Black) Extends 12.68-inch to 20.67-inch from the ceiling or 13.74-inch to 21.73-inch off the wall Includes PRS Series Projector Mount Continuous channel design for uninterrupted drop length or wall extension adjustments Safety catch on extension ensures user and equipment safety Internal cable management for clean, clutter-free appearance