This model is a door hook. It has too solid and protuberant hooks.
The part on top of the door is 2mm thick to fit tight door frames. You should use 3 wall layers and choose a size fitting tightly the thickness of your door to insure the maximum mechanical resistance. I had no issue using it with fairly heavy coats.
I made this model because i couldn't find any hook fitting my door (46 mm thick) so i included here multiple models adapted for any usual door size. The door thickness is indicated in the file name.