Description: Features: brand new and high quality Fit for shaft hole diameter: 6mm/0.24inch. Dome shape knobs. Made of premium metal material, durable and long lasting use. Suitable for electric guitar and . The knob will fit the rotating shaft more tightly. If your knobs are dirty, dingy and old, or just want to dress up your guitar, these will work great. Specification: Color: Silver Material: Metal Size: app. 1.8x1.8x1.56cm(0.71x0.71x0.61in) Quantity: 1 set(2pcs) Note: Transition: 1cm=10mm=0.39inch No retail package. Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 set(2pcs) x Guitar Dome Knobs(other accessories demo in the picture is not included.)