If your projector is less than 12lbs and has one hole in the projector bottom will be suitable. screws diameter, 1/4 in 0.25in/6.35MM , if your projector hasn't a hole，Please don't buy it. Larger Base with a loading capacity 8.8 lbs /4 kg (ceiling hanging and floor standing), 4 lbs/1.8kg (wall hanging). rotate the telescopic fixed valve clockwise, and tighten it. The projector stand is easy to install and convenient to adjust. an integrated ball joint system allowing 90-degree tilt, 360°rotatable head for easy to adjust angle Fits with most projectors or other devices like mini projector, DLP projector, digital camera and camcorder, etcEASY TO SETUP Just drilled in 4 holes into the wall and set up the projector to your desired position then it was done. The size of the projector camera mounting bracket is 2.36 inches, which is suitable for camera mini projector bracket use