Specification: Button: 3 Color: Black Blade: HU92 Blade (Uncut) Materials: ABS Plastic+Metal Battery: 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.