The installation is very simple, it caught nothing and if you need the 3 castles 15 minutes one has meanwhile probably even had a coffee.
There can be no more than that one (in my case, the garden gate) something needs to cut back the screws due to the nature of the door, but this is also not the end.
All in all, a real bargain. I have before me but then ordered from Amazon, in my area a little looking around, but the price was much higher than the EUR 22.99 ...