Multiple available. Secure with a grub screw so ideally for smooth shaft pots. 26mm on the bottom, top bit is slightly smaller.
48mm giant satin Black knob mushroom amplifier radio pointer 6mm vintage style
48mm giant Black knob mushroom amplifier radio pointer 6mm vintage style RCA
26mm black silver top amp knob fluted volume amplifier radio control knob 1 inch
33mm Brown red knob mushroom amplifier radio control pointer 6mm oxblood
33mm Bright White knob mushroom pointer 6.35mm amplifier radio control style
33mm Green knob mushroom amplifier radio control pointer 6mm vintage style RCA
