Strat 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: strat knob. Finish: Straight-Knurled. Material: Brass. Unit: Set = 3 pieces. Measurements l x w x h (mm): 25x25x13,1. Weight g/item: 23. Surface: Black Chrome.