In the box, one had a substantial dent that had to be filed down. Once install started, one would not fit over the hub. I had to decide to run with the other three already installed and one missing, return them all, or try to grind the one down to fit. After about an hour with a Dremel, I got the 4th to finally fit over the hub. Huge hassle. Will see how they hold up over time. Not impressed with quality so far.