500K audio taper pot on the top, 250K audio taper pot on the bottom. Nice dual ganged volume pot if you're hot rodding a guitar with a humbucker and some single coils. Splined shaft accepts standard USA 'push on' knobs. Fender includes a lock washer and hex nut. We include a flat beauty washer so you can do a First Class install. Photo may not reflect current Fender packaging.