ITEM NAME:Guitar Knob Made of Quality Alloy Bronze Color Screws Fixing Tone Or Description: Aluminium alloy knobs are for sound equipments or rotary potentiometer, The knobs have a knurled finish around their circumference. These knobs do not have a plastic insert; they are CNC machined from one piece of solid aluminum, with a durable anodized surface finish. Material: aluminum alloyï ¼â€ºColor: bronze color Total Size: 20 x 19mm / 0.79" x 0. 75" (d*h); inner Hole diameter: 6mm / 0.24" High quality knobs with faultless finish Free allen wrench is included Package Includes: 4 Pieces Guitar Control Knobs 1 Piece Wrench Note: Color might be slightly different due to the color calibration of each individual monitor. Please allow slightly measuring deviation due to manual measurement. SKU: ALU0024924078016444.Material: aluminum alloyï ¼â€ºColor: bronze color. These knobs do not have a plastic insert; they are CNC machined from one piece of solid aluminum, with a durable anodized surface finish. High quality knobs with faultless finish.