Gotoh VK15 & VK18 Knurled Stacked Concentric Knobs, set of 2 (chose finish)

Set of 2 concentric stacked knobs for use with dual control concentric potentiometers.
The top knob fits 6mm shafts and the bottom knob fits 8mm shafts.
All metal construction with a knurled edge to give grip and a set screw on each knob to tighten it onto the potentiometer.
High quality, made in Japan.