Musiclily Pro Steel Universal Metal Stack Knobs for Electric Guitar/Bass, Chrome (Set of 2)

Fits electric guitars, basses, and other instruments with dual concentric potentiometers for most common concentric potentiometers. Top knob size: 19mm outer diameter, 13mm height, 6mm inner diameter. Compatible pot shaft diameter: 6mm. Bottom knob size: 25mm outer diameter, 10mm height, 8mm inner diameter. Compatible pot shaft diameter: 8mm. Material: Steel, sturdy and durable. Brass shaft hole, includes set screw. Package includes: 2 pieces.