Musiclily Pro Universal Metal Dual Concentric Stacked Control Knobs for Electric Guitar and Bass, Chrome (Set of 2)

I have a kit bass with stacked bass/treble controls. The original knobs that I had used a 1.5mm Allen key, but the set screws that were stripping. I ordered these as a replacement. They fit great, and as another benefit, they use the same 2mm Allen key that the bridge uses to set string action.

I wanted these to get that black on black with my squire classic vibe Jaguar Bass. They fit perfectly and look great, no problem whatsoever.

***WARNING***These knobs WILL NOT fit the fender 250k/500k concentric pots. The opening on both knobs (top and bottom) is too large so they do not fit the shafts properly.

I'm in the process of making a Squier Classic Vibe Jaguar bass all black. It has 2 concentric volume/tone knobs, black on bottom, chrome on top. I replaced the top chrome knobs with these black ones. (Before and after pics.)

The stock knobs on my Sire bass were old school 7 sided star shape. Looked nice, but not a great feel, not a smooth rolling knob. These fit perfectly. A word of caution if you have plastic press on knobs (knurled shaft), be very careful pulling them off. If they are very tight, you might pull the pot shaft out. You can warm them with a hairdryer, being careful to shield the guitar body of course. These knobs have set screws, work fine on solid or knurled shaft.