Metal Knobs for Guitar

3PCS Metal Dome Knobs Knurled Barrel for Electric Guitar Parts BlackFeatures:3 pcs of dome knobs with coarse knurl on the sides.The central hole for Pots is approx. 6mm in diameter.Durable metal material.Used to replace the old knob.Specifications:Color: blackMaterial: metalInner hollow shaft diameter: Approx. 6mm / 0.24inPackage size: Approx. 9 * 5 * 2cm / 3.5 * 2 * 0.8inPackage weight: 84g / 2.96ozPackage including:3 * Knobs