Guyker Guitar Aluminum Dual Concentric Control Knobs – Dome Volume Tone Stacked Knob Replacement for Electric Guitar or Bass (bl

guyker dual concentric control knobs are for sound equipment or rotary potentiometer, for protection and easy control The switch knobs have a domed finish around their circumference Benefits Features: – control the tone & volume on the same pot, it has screw hole on the knob – compatible with most electric guitars bass – Easy replacement or upgrade Specifications: – Base one size: Approx19mm 075 in (Width) – Base inner shaft hole diameter: approx 83mm 033 in – Top one size: Approx 16mm 063 in (Width) – Top inner shaft hole diameter: Approx 62mm 024in – Total Height: Approx 20mm 079 in – 5 color available: chrome, black, gold, red, blue – Style No: cKB-002