Good: Bought these to replace casters on my kobalt tool box that literally disintegrated. These are way better built, noticeably heavier, and don’t have the same failure points as the originals. Much smoother too.Bad: mentioned in other reviews, the top plate isn’t precise. I had to grind out the holes, some to just clean up manufacturing spurs, others because they were slightly misplaced. If you’re tapping new holes in whatever you put these on, not a problem. Matching to existing holes, be prepared to do some minor grinding.