I purchased two of these pleats around my roof window to be provided with an insect protection.
The delivery was very quick and the material makes a very high-quality impression.
Unfortunately, the manual is completely incomprehensible. There are even video instructions on Youtube of shops and a printed manual on paper. The video looks very simple, but only because in the video very important and difficult assembly steps are missing. These steps are in the manual "explains", but unfortunately extremely incomprehensible. There are in the manual only images available - no text.
Especially the margins of the cords is shown very incomprehensible.
I've mounted together a lot in my life, but such a miserable guide I've seen nowhere.
Article went returns - now look around for an alternative.