Item Name: Wrench Black Tone Control Knobs Electric Guitar Bass Guitar Parts Dome Knobs. Description Color: BlackHeight: 17.3mm (approx 0.68Inch)Brand new and high qualityDiameter: 18mm (approx 0.71Inch)Hollow Shaft Diameter: 6mm (approx 0.24Inch)Material:MetalIf your knobs are dirty, dingy and old, or just want to dress up your guitar, these will work great.Brand new knobs in excellent
