Review on Larger Square Single Mounting Bracket: Enhanced Stability and Versatile Installation System by Ross Bagby

We used them to install CCTV signs on lamp posts at our HOA. It was a lot easier than I expected. The key is to attach the shields to the brackets until the straps are attached. After the signs are located and aligned, tighten the straps. Keep the lag bolts in the open space between the shields. There are no installation instructions, so I'm listing it here.