Elitech Projector Wall Mount EW1 Black The demension of the bottom plate is 15.2" L x 7.9" - 13.4" W. The width of the bottom plate easily adjustable (7.9" - 13.4") The bottom plate can turn 360 degree. It also can be tilted up to 10 degree. Loading capacity: 33 lb. Color: Silver Very easy to install: After fix the mount on the wall, then just tie the projector on to the bottom plate with the length adjustable belt.