Description: - Set of 4pcs neck joint ferrule bushing with matching screws. - High quality material,solid and durable. - Easy to install,convenient to use. - Suitable for Electric guitar bass. - To help guitar bass body and neck connected. - Material: Steel - Color: BlackSize Chart:Ferrule Diameter: 14mm/0.55inchScrew Size(L x W): Approx. 44.5*4.5mm/1.75*0.18inchPackage Includes:1 Set of Neck Joint Bushing with Matching Screw(4pcs Ferrule and 4pcs Screw)Note:Due to the difference between different monitors, the picture may be slightly different reflect the actual color of the item.Due to manual measurement,there may be 1-2mm error in size.Please understand with us,thank you!