Speed knobs made of solid brass. These knobs feature a grub screw recessed into the side, allowing them to be neatly and securely fastened to the pot shaft. Features: Model: speed knob. Finish: Smooth. Material: Brass. Unit: Set = 2 pieces. Measurements l x w x h (mm): 24,5 x 24,5 x 12. Weight g/item: 24. Surface: Black Chrome.