UNIVERSAL MOUNT: Fits most projectors with 3 sizes of screw adapters, 170mm / 6.8 inches long, featuring beautiful aluminum alloy, perfect as a CCTV DVR DV Trail camera mount for home, office, or classroom. MULTIPURPOSE PROJECTOR MOUNT: This micro projector mount offers ceiling, wall-hanging, and tabletop stand options – a 3-in-1 solution to meet your diverse needs. EASY TO INSTALL: The adjustable projector mount is easy to install with included accessories, screws, and manual. Simply twist the knob and tighten to achieve the best angle. SCIENTIFIC DESIGN: The wall and ceiling projector mount is designed for miniature ceiling fixtures with a thick tube and wider base, boasting a maximum capacity of 6.6 lbs / 3 kg. (Use pliers to tighten the knob for a more secure angle). SERVICES: Please let us know if you have any issues. We will do our best to serve our dear customers