Feature:-.-Better fitting,solid case and nicer buttons.-Materials: ABS Plastic + Metal-Color: Black-Button: 2Button-Battery/ Transponder chip/ electronic: NoSuitable for the following:2001-2007 Mercedes C Class1998-2009 Mercedes E Class2001-2009 Mercedes CLS2001-2009 Mercedes CLK2005-2010 Mercedes ML2005-2010 Mercedes B CLass2005-2010 Mercedes SLK1999-2006 Mercedes CL1999-2006 Mercedes S ClassPackage Included:1 x Key Case ShellImportant:1. This listing is intended for when your key has external damage but the internal remote chip still works.2. No installation is required as you still use the existing electronics.The use and function will be the same as the original unit.3. Please check pictures and compare with your original key, make sure the casing looks the same for it to be compatible.