The panels are delivered, a few days before the announced date. Even in the Amazon is still status "in delivery". So, very fast shipping. Packed they are perfect. They are mounted quickly and also make a firm impression on the steel rim. The first long drive behind me, and the diaphragm are still sitting firmly. For optics, which is a matter of taste. Anyway, I really liked it on the black steel rims. I'm very satisfied.
Supplement 4.2: All diaphragms have now been removed and remounted several times. All are tight yet, still satisfied.