As a potter I run across a lot of videos showing different things to help hang an artist’s works but I never saw this particular plate hanging option when I was actually making things small enough to be able to use these hanging discs.
It would have made a lot of my ceramic pieces small enough to hang less onerous. I had to create a wire framework on the back of my pieces in order to be able to hang them. It usually added extra weight and was cumbersome to setup. If I only had something like this when I was working on my wall installation, even though some of the tiles would have had to have been reinforced for these to work properly.