This version of our Gyrolock projector mount has a 1½″ pipe coupling so it can be used with standard 1½″ national tapered pipe. It offers 360 degrees of rotation and comes with standard mounting hardware. Projectors may be mounted at a fixed-height of any distance from the surface. Simply use existing 1-1/2" national tapered pipe, or order the length of 1½″ national tapered pipe pipe you require to achieve your ideal mounting height. Roll/pitch allowance of greater than +/- 20 degrees from center. Yaw allowance of 360 degrees. Locks in any position. Docking system for easy display removal.