Concentric Dual Knob Metal Dome Potentiometer Cap For Electric Guitar Bass Tone _x000D_ new and high quality_x000D_ _x000D_ OOTDTY _x000D_ Material :Metal_x000D_ Gold /_x000D_ Black/Silver_x000D_ Dual knurled concentric knobs made with durable metal material_x000D_ To be used with the dual concentric Pot_x000D_ Control the Tone & Volume on the same Pot_x000D_ for most electric guitars_x000D_ 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_x000D_ Quantity:1 Set_x000D_ _x000D_ Note: _x000D_ Due to the difference between different monitors, the picture may not reflect the actual colorof the item. Thank you!_x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_