Rotate the fixed valve clockwise to tighten it. The projector stand is easy to install and convenient to adjust. Projector compatibility and base capacity If your projector weighs less than 2 kg and has a single 1/4 inch mounting hole on the bottom, it is suitable for this stand. The base has a loading capacity of 2 kg, providing stable support for compatible projectors and devices. Easy setup Easy wall installation: drill four holes in the wall and mount the stand. Once mounted, position the projector to your desired angle and you are ready. Flexible angle adjustment Integrated ball joint system allows up to 160degree tilt and 360degree rotation for convenient angle adjustments. Compatible with most projectors or other devices such as mini projectors, DLP projectors, digital cameras and camcorders. Use scenarios Home theater setup: mount a compact projector on a wall above the seating area for a clean, spacesaving home cinema. Classroom or meeting room: install in front of the class to project presentations with adjustable angles for varying seating layouts. Studio or videography setup: use with compatible cameras or camcorders to achieve flexible mounting angles for recording or streaming.