I am dissatisfied with the quality of the 1" leveling blocks. When I first opened the package, I noticed bad welds. The beginning and end of the welds have bad craters. Then all welds are heavily undercut. I also noticed that they weren't square when I laid them side by side. I know this because I have 19 years of certified welding experience. Too bad I didn't take any photos before cutting out all the welds and attaching both blocks. This company requires some quality control before producing any more suspension parts.