The Universal Projector Mount (model PBL-UMW) fits most projectors under 25 lbs and features four double-jointed support arms that allow flexible positioning to reach almost any mounting point. Each arm can be precisely positioned to avoid covering important projector ventilation and access points used for lamp and air filter replacement. This minimizes heat build-up and maximizes lamp life. Unique leveling barrels allow the PBL-UMW to adapt to any projector base, no matter how oddly shaped, to maintain a level installation. Its robust construction allows the mount to positively hold the projector fixed at nearly any angle. The PBL-UMW Universal Projector Mount also features: ? 360-degree rotation with more than +/-20? tilt and roll ? Ceiling-mount capability (including vaulted or cathedral ceiling ? Wall-mount capability ? Adjustable-height from 9" to 12?"; or built-in low-profile option of only 2?" from mounting surface ? Cable-routing channel for a clean look