This is a good and sturdy product, but I guess just not exactly what I was expecting. It does mount to the wall, you can add or remove sections to change the size, that is all accurate. I did not realize that you have to permanently mount it to the wall if you do want to mount it, and it does not swing or slide so your only option  is to step over it. The sizes of each section are also a bit awkward, so you can’t size it to your precise needs, you can just make it longer or shorter based on what the piece sizes are. The mounts do flex in a way so you can change the shape a bit, but if you need it for around stairs for example it’s not super practical.