Reolink Security Camera Corner Mount

This mounts a Reolink security camera into a corner with two vertical surfaces and one horizontal surface that meet.  Includes a cavity to bundle up the cabling.  I had to mount a camera in a corner that was two heavy beams that I was not permitted to drill through to pass cabling.  This allows the entire camera install to be surface mounted, with the only holes being the screws that hold it into the vertical surfaces.  Designed so screws only go into vertical surfaces and not the horizontal surface.  As I was also dealing with a really fancy ceiling that could not get any holes at all, even attachment drill holes.  It could probably be rotated to put holes in the horizontal surface instead?