Specification: 2 button remote key fob case for MERCEDES-BENZ W168 W202 W203 W210 W461 etc This is just a replacement shell case and uncut blade only, there is NO electronic internals. You will be required to open the old remote to remove the internal module then insert it into this case. No logos or emblem. If the original keys look the same this is the you need. Please compare carefully before purchase. Button: 2(Lock,Unlock) Size: about 60 x 32 x 16mm Blade length: 41mm Color: black What you need to do after buying it? Unscrew your existing key shell Remove the inside module Move the module into the new key shell Get the new key to local locksmith cut to fit your vehicle Note: Please allow 1-10mm deviation due to manual measurement. Due to light and screen difference, the item's color may be slightly different from the pictures. Package includes: 1 x Remote Key Fob Case Uncut Blade