SCI RN-99F(6.4mm) RN-99F(6.4mm) Control knob Black, White (Ø x H) 19.5 mm x 11.5 mm 1 pc(s)

Axle mount: 6.4 mm; Factory colour: Black, White; Material: Phenol; Product size (height): 11.5 mm; Product size (Ø): 19.5 mm; Type (misc.): With marking

Price: 1.29 from Conrad Electronic