Five Minutes Installation - The package contains some assemb parts and a user manual. You can refer to the installation video and download a assembly manual on the product website. Universal Ceiling Mount - Fits most of different DLP projectors, you can install the projectors on the ceiling or on the wall when you confirm the screw hole on the the back is 1/4 inch. Tested 11 Lbs Load Support - The mount factory has done a lots of load-support tests to confirm that the projector mount can hold a maximum load of 11 Lbs when properly instal. Fully Adjustable Angle - Supported to 35-degree tilt, 90-degree swivel, and 360-degree rotation. Hits all the right viewing angles so you can get a comfortable projection angle. Different From 9.99 USD - Different from the product with less than 0.1 lb low mount, the ceiling mount made of high quality aluminum allow, support length adjustment, and a snap-fit design.