Hubcentric spacers offer a better system of support and stability. They are designed to make a snug connection between the wheel and vehicle hub, reducing the high-speed vibration. Besides, they can also be used to change the center diameter of your car, making it possible to install wheels with different center diameters to your vehicle properly, transforming lug-centric wheels into hub-centric wheels. For some special vehicle hub styles (such as Porsche 911 three-finger style hub, Land Rover Defender style hub, and more), BONOSS has further optimized the design of the hub-centric spacers for fitting perfectly.Mercedes-Benz C300 W206 Wheel Spacers, Safely Upgraded Your Braking System