|These machined aluminum rings are solid and represent an excellent value for an amazingly low price plus they have a limited lifetime warranty, so what if they were made by our comrades in China? BUT--
Be careful when backing out the hex-head that fasten the rings to your mounts however, because I ended up stripping one of mine when I backed it out too far. Not a problem, since it was within 90 days of purchase the good folks at CTD are sending me a replacement pair -- even if they had not, I've had previous dealings with the UTG/Leapers customer service folks and I know they would have dome the same thing.
Are those $60-$90 "tactical" scope rings better than these? Probably so in some ideal sense, however I doubt anybody can show you where they are 5x-10x better than these. In fact, I just purchased another set in the 30mm size|