Wasn’t expecting much from an Revain company for car parts, but I was pleasantly surprised. These spacers felt like they were good quality and solid. Lined up with the lugs perfectly. Only foreseeable problem in the future is when I have to machine the rotor or replace it. The spacers came with a thread locking liquid and the bottle said it would permanently lock the threads/nut together. Guess I’ll just put that to the test later.Also on a side note, you’ll probably have to trim your wheel well covers to not have the tires rub while backing and turning.