Specifications: Best replacement for a key with broken buttons or worn key case. Key case only, has no electronic internals, this is an aftermarket replacement case. Take the internal electronics(include immobilizer/transponder chip) from original remote. Get blades cut by local locksmith/dealer or swap the blades with your original. Type: Car Key Shell Material: ABS + Copper Button: 1 Button Features: Durable, Wear-resistant, Anti-Scratch Fitment: for Mercedes B-enz W168, W124, W202 1984-2004, for A, C, E, Smart For Two Notes: Please compare with pictures before purchase, make sure your key is exactly as same as pic shows. This is just a remote key shell case replacement, there is no interior unit(remote/electronics/transponder chip) inside. Due to the light and screen setting difference, the items color may be slightly different from the pictures. Package Includes: 1 x Car Key Shell