Features:

Dual knurled concentric knobs made with durable gilded metal material.
To be used with the dual concentric Pot.
Control the Tone & Volume on the same Pot.
Compatible with most electric guitars.

Specifications:
Base one size: Approx. 18.2 * 12.5mm (D * H)
Base one inner hole diameter: Approx. 8mm
Top one size: Approx. 15.2 * 14mm (D * H)
Top one Hollow Shaft Diameter: 6mm
Color: Chrome

Package Included:

2 x Dual Concentric Knobs