407-2469, Sifam, Sifam 29.5mm Black Potentiometer Knob for 6.35mm Shaft Splined, SP291 250 BLACK, Brand Sifam, Shaft Size 6.35mm, Shaft Type Circular, Knob Diameter 29.5mm Sifam 29.5mm Black Potentiometer Knob for 6.35mm Shaft Splined, SP291 250 BLACK