These wheels appear to be of good quality. I would have given this product 5 stars if it weren't for the mounting screws that came with it. I decided to go ahead and use it, albeit in a smaller size. The first 2 of 16 went well with the pilot hole. The next 2 came off. The next 4 heads were blown although I was very liberal with the pilot hole. Very very annoying as I had to extract each one with a vise. Note to seller. Your discs are of good quality. Spend a dime or two including properly sized steel bolts instead of aluminum bolts, or leave all the junk hardware.