4pcs Metal Guitar Bass Dome Tone Knobs for Electric Guitar Volume Control Knobs Features: 100% brand new and high quality. It is suitable for Electric guitar, electric bass. Specification: Material: Metal with chrome plated Color: Gold, Silver, Black Small diameter: approx. 18.2mm/0.71'' Large diameter: approx. 18mm/0.7'' Pots of hole: approx. 6mm/0.23'' Quantity: 4pcs Net weight: approx. 54g Note: Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not reflect the actual color of the item. Thanks for your understanding.