One of the tuner peg handles broke off my cheap Korean made Fender acoustic guitar. I did not want to spend a lot to fix it because the guitar isn’t worth much, but I enjoy playing it occasionally. One day I’ll have a nice American made guitar again, once I get my kids through college. Anyway, I digress. These tuners work, but they are not great. They are made in China and it shows in the quality. As you can see from the pictures, the finish on one of the bushings is very poor and looks very pitted. Also, a couple of the tuners don’t operate smoothly. They seem grind when I adjust them and they take more effort than they should to turn them. I tried lubricant on the gears of one of them, but that did not seem to help. I’ve requested a replacement set so that hopefully I can scavenge enough decent parts from between the two sets. I would not recommend these if you have a nice quality guitar, but they may be fine for you if you have a cheap guitar like mine.