SCI RN-99A(6.4mm) RN-99A(6.4mm) Control knob Black, White (Ø x H) 45 mm x 20.3 mm 1 pc(s)

Axle mount: 6.4 mm; Factory colour: Black, White; Material: Phenol; Product size (height): 20.3 mm; Product size (Ø): 45 mm; Type (misc.): With marking

Price: £ 2.29 from Conrad Electronic