The mount allows you to tie around it the tope/tape of your blinds as they can be annoying just flapping around.
In Croatia, the blind tape is wide so it's even more annoying.
The holes on the ends are 9mm wide, but keep in mind that the backside of the model is filled in (there is no pre-drilled hole). I made it like that so that you can use any size screw to mount it at home.
The author marked this model as their own original creation.