I give these critters five stars because they were exactly what I needed and are very well made. They easily adapt to different pipe sizes and have brackets already installed to easily weld flat objects round, parallel or perpendicular to the pipe. Unfortunately, you can only give three stars for the performance - the magnets are NOT very strong. They hold the small pieces of cymbal in place, but don't hit them! Strong hands if you're reading this, I want these things, but they need to haveβ¦