Description:100% brand new and high quality Feature:Guitar neck tension rod. Bi-directional or two-speed rod type. High quality dual action guitar neck tension rod, weld point in place. It works in both directions can increase the curvature in both directions. Each of them is a high-quality lever adjustment to ensure that each guitar with excellent and stable quality. Different length sizes optional to meet different needs. The hex wrench is made of materials that are not easy to loop wires. Specifications:Item Type: Guitar Neck Tension RodMaterial: Metal Size: Length: 380mm/14.9in, 420mm/16.5in, 440mm/17.3in, 460mm/18.1in, 570mm/22.4in, 600mm/23.6in, 630mm/24.8in (Optional)Color: BlueQuantity: 1 SetNote: No retail package. Transition: 1cm=10mm=0.39 inchPlease allow 0-1cm error due to manual measurement. Pls make sure you don't mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package Included:1 x Guitar Neck Tension Rod1 x Hex Key