ZzzaNaSpecifications:Color: BlackMaterial: IronItem Size: 40 * 40 * 20mm/ 1.6 * 1.6 * 0.8inPackage Size: 50 * 50 * 40mm/ 2.0 * 2.0 * 1.6inPackage Weight: 150g/ 5.3ozPacking List:1 * Wheel Stud Installer