I used these on my Fender Bass VI because the Volume Control turned so easily that in the course of playing, and pretty much every time I reached for the Vibrato Arm, I would bump the Volume Control and turn it down. I run my amps with the Volume Control dimed and control the volume with the guitar, so this was absolutely unacceptable. I was just about to remove the Volume Control plastic knob as a solution when I ran across these stick on friction inserts. What a simple solution to a major problem. They've worked great so far (about 1 month) and if they continue to do so, I'll certainly be purchasing some more.
Santa Clarita CA