Do what he will, but be careful with the "late effects"

Hello,
I looked for a door closer that is strong enough to close the door in our old apartment but at the same time it allows our cat the door from both sides to open.
Anyone familiar with the typical doors in the old building, know that these are larger and heavier than those used today.
The door closer pressed against the door except for a gap of 5-10 cm, so that our cat comes back into the room with a little work.
It has 3 settings, which I have chosen the middle.
Disadvantage:
Missing installation instructions: with a little technical understanding that is not a problem.
You have to screw him what holes leaves and needs during the subsequent pull-out of the apartment corresponding reworking.
But there is one way or another be needed in our case, as you can see in the picture, the point was not essential for the cultivation.
So if you do not know how to eliminate the damage caused by the cultivation, should stay away from this product.

Conclusion: I am satisfied so far, but am going to continue to look for better alternatives that protect the material.