I bought these tuners to put them on a DIY '59 P-Bass. I wanted the bass to turn out really light, and the fact that these tuners are about half as heavy compared to regular tuners of the same shape helped a lot. The quality of the nickel plating is impeccable, and the tuning stability you get from them is great. They also work very smoothly, much better than even more expensive light vintage-style tuners from other brands that I tried. Overall well worth a shot.