Golden Gate S-39 Vintage-Style Control Knobs - Set of 2 Vintage flat-top control knobs for electric guitar with no-slip knurled grip Triple chrome-plated brass with slotted-head set screw fits 6mm solid or split potentiometer shafts Added weight of the brass design provides a smooth, and solid rotational feel Perfect for that vintage restoration or any new custom build To learn more, please see our Product Description below