Concentric Dual Knob Metal Dome Potentiometer Cap For Electric Guitar Bass Tone

brand new and quality Material :Metal Gold / Black/Silver Dual knurled concentric knobs made with durable metal material To be used with the dual concentric Control the Tone & Volume on the same Compatible with most electric guitars Base one size: Approx. 18 * 12.5mm / 0.7 * 0.5in (D * H) Base one inner hole diameter: approx. 8mm / 0.31in Top one size: Approx. 15 * 14mm / 0.59 * 0.55in Top one inner hole diameter: Approx. 6mm / 0.24in Quantity:1 Set Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!