Features: 1.Applicable Model: Extended wheel conversion stud is specially designed for European Vehicles. Replacement for Mercedes?Benz and more. 2.Quantity and Size: The kit includes 20pcs wheel stud conversion adapters. The shank length is about 33mm / 1.3in, overall length is about 50mm / 2in. 3.Advantage: Wheel screw adapter allows for faster and easier wheel changes and allows the use of aftermarket tuner and racing lug nuts. 4.Fine Workmanship: Using heat treated 10.9 grade carbon steel with zinc coated to prevent rust, and a heat treated coating to prevent oxidation and protect the metal. 5.Dependable Quality: The manufacturing conforms to the standard specification, strictly follows the factory quality control, high performance and strong reliability. Specification: Item Type: Wheel Conversion Stud_x000D_ Material: Steel (heat treated), with Zinc Plated (prevent rust)_x000D_ Quantity: 20_x000D_ Shank Length: Approx. 33mm / 1.3in_x000D_ Overall Length: Approx. 50mm / 2in_x000D_ Grade: Grade 10.9 (Factory OEM)_x000D_ Fitment: Fit for European Vehicles, replacement for Mercedes?Benz PackageList: 20 x_x000D_ _x000D_ Wheel Conversion Stud