I bought the set for my Audi 100 C4 and was first shocked that I could not see anything on the driver's side on a rainy evening.
After much research, I then decided to buy me a new wiper lo and behold,
the disc is free and I can drive safely through the area.
Attaching the wiper blade is done very easily and in two minutes.
I am pleased and will next time (hopefully keep these sheets also long) revert to the Aerotwin.