Features1Made of quality materials, high strength, anti-rust, non-deformation and practical. 2Fine workmanship makes the surface smooth and can prevents abrasion damage. 3Easy to install and use. 4Suitable for use when the six-pin disc is installed in the center lock hub. 5Auminum alloy, wear resistant for long lifespan.SpecificationInstall on the center lock hub to enable it to install a six-pin disc.Features:Made of quality materials, high strength, anti-rust, non-deformation and practical.Fine workmanship makes the surface smooth and can prevents abrasion damage. Easy to install and use.Suitable for use when the six-pin disc is installed in the center lock hub.Auminum alloy, wear resistant for long lifespan.Specifications:Color: red, blue, black, yellow (optional)Material: Auminum alloyDiameter: 52 mmThickness: 9 mmPackage size: 80 * 60 * 10mm / 3.1 * 2.4 * 0.4inPackage weight: 30g / 1.1ouncePacking List:1 * Centerlock 6-hole AdapterPackage List1 * Centerlock 6-hole Adapter