Specification:Button: 3Color: Black Blade: HU92 Blade (Uncut)Materials: ABS Plastic+MetalBattery: Yes (Re-chargeable LIR2025)Transponder chip/ Circuit Board : No Fit For :For BMW E46 E39 1 3 5 7 Series X5 X3 Z3 Z4 Package Include:1 X Key Case 1 X Battery 3 X Switches Feature:- For BMW 3 button remote key fob service repair kit.- A perfect replacement for a key with broken buttons or worn key blade.- Existing circuit board and transponder chip can be installed from your original key into the new case.- You can have the new key blade cut at your local locksmith’s - Ensure original keys look the same, and your existing case has the same type of battery holder otherwise will not work.