Aluminum shell knob with ABS plastic insert, square knurl and indicator line on top and side Material: ABS Diameter: 16.5 mm Height: 10.2 mm Shaft hole: ``D`` type, 6 x 4.34 mm
Rotary knob with recess indicator line on top, straight knurl in outside, light texture on top Material: ABS Diameter: 15 mm Height: 12 mm Shaft hole: 6 mm, 18 teeth
Control knob with printing graphics on the skirt, gloss finish Material: PHENOLIC Diameter: 51.8 mm Height: 27.2 mm Shaft hole: 6 x 4.5 mm with spring clip