Specification:BGA TypeButton: 3 ButtonColor: BlackMaterials: Plastic & stainless steelBlade: Uncut, need to be cut by locksmithBattery/ Transponder chip/ electronic: NoQuantity: 1pcFit For:For Mercedes Benz A ClassFor Mercedes Benz B ClassFor Mercedes Benz C ClassFor Mercedes Benz E ClassFor Mercedes Benz S ClassPackage include:1 X Key CaseFeature:- A Perfect Replacement for a Key with Broken Buttons or Worn Key Blade- The key is with uncut blade and needs to be cut to match your car by local locksmith with your original.- If you use your old remote then there is no programming require- Note: This is just a Shell there is no internal module (remote/electronics/transponder chip)