It is a good accessory for your guitar.

Features:
A great part for your guitar.
A tone potentiometer with 16mm base.
Split shaft with coarse knurling.
Coarse knurled shaft fits most control knobs.

Specifications:
Material: Metal
Shaft Length: 15mm
Shaft Diameter: 6mm
Base Diameter: 16mm                                                                                                               
Package Size: Approx.3.5 * 2.2 * 2cm / 1.4 * 0.9 * 0.8in
Package Weight: Approx.9g / 0.3oz

Package List:
1 * Guitar Potentiometer