10Pcs Durable Potentiometer Volume Knobs for D Shaped Shaft Electric Guitar Bass Specification: Features: Adopting aluminum and plastic material, durable and anti-corrosion. The installation hole is designed for D shaped shaft. Widely used as guitar or bass potentiometer volume knob . 10pcs coming in a package, meeting your different use needs. for replacing the old or broken ones of your electric guitar or electric bass. Specification: Condition: Material: Aluminum + Plastic Color: Black + Silver Quantity: 10Pcs Application: Electric Bass Guitar Fit for: D Shaped Shaft Whole : Approx. 17 x 15 x 14mm / 0.67 x 0.59 x 0.55inch Installation Hole SizeDia x W: Approx. 6 x 4.8mm / 0.24 x 0.19inch Weight: Approx. 15g Packing List: 1 x Pack of 10Pcs Shaft Hole Knob