The quality of these rollers is noticeably better than the Harbor freight ones. I'm impressed. Having the ability to adjust them to various bar sizes pushed me over the edge. I probably would not have sprung for them otherwise, just because I'm not sure how much I will be using them. That made it a much better value. I made a 24" hoop out of 1-1/2" x 3/16" bar. Came out perfect.