Best replacement for a key with broken buttons or worn key case. Key case only, no electronic internals, this is an aftermarket replacement case. Take the internal electronics(include immobilizer/transponder chip) from original remote.   Fitment: For Mercedes C Class 2001-2007  For Mercedes E Class 1998-2009  For Mercedes CLK 2001-2009  For Mercedes ML 2005-2010  For Mercedes SLK 2005-2010  For Mercedes S Class 1999-2006  For Mercedes CLS For Mercedes B CLass For Mercedes C-L   Type: Car Key Case Material: ABS Button: 2 Buttons Features: Durable, Wear-resistant, Anti-Scratch   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 item& 39;s color may be slightly different from the pictures.   Package Includes: 1 x Car Key Case Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store