1、Vehicle Fitment: Wheel bolt lock nut key is replacement for Benz A?Class, B?Class, C?Class, Glk?Class, Clc?Class, Cls?Class, Clk?Class, E?Class, Sl?Class, Slk?Class, M?Class, C300, C250, C350, E320, E204, E211, E212. 2、Unique Design: The wheel locking nut key adopts a unique design and encryption method, making it difficult to copy or imitate, and improving the effect of vehicle anti theft. 3、High Performance: Strong strength alloy steel construction ensures a high degree of safety and reliability, ensuring your safe driving. 4、Stable and Reliable: Strict quality control and testing process, effectively prevent the wheel from loosening, and meet your use requirements. 5、Easy Using: You can easily install and remove, simple to use, and car owners can easily manage and control their vehicle anti theft.