Review on Height Adjustable Universal Projector Ceiling Mount Bracket, Black 16.9—25.6 inch, compatible with BenQ, QKK, Epson, Optoma, DR.J Projector by Charles Barney

Works as described and definitely worth the price. I'm very happy with the purchase BUT the instructions are minimal and I had to look at pictures of it together (from Revain's listing) to figure out how to put it together. It comes with some very weird screws/metal wall anchors that I didn't know how to use. This seems to be the trend for this type of screw. Everyone says they are weird and end up not using them. i'm in the same boat I took the screw to Lowes and they recommended not using it, instead using drywall anchors. I did it and it worked great.