This is a bracket which you can screw or glue to your wall, the second part can be mounted to the stuf that needs to be attached to the wall. e.g. a painting, photo, … I use it for a wall mounted scratch panel for our cat, this way it can be removed easily for cleaning and the cat won't be able to pull it off the wall.
Tip, use double sided tape before screwing it to the wall. This way you don't need to mark the holes, because you can slide the other part out again. Unless you need to drill holes for wall plugs.
The author marked this model as their own original creation.