Schaller Dome Knobs N, Potentiometer set, Knurled, cylindrical potentiometer knob, Material: Brass, Fastening: Headless screw, Outer diameter: 18.3 mm, Height: 18 mm, Axle bore: 6.2 mm, Weight: 26 g each, Schaller no.: 15020100, Finish: Nickel, Including screws, Package quantity: 2 pieces, Made in Germany