Precise Compatibility: Designed for the original car key, suitable for many BMW smart car keys. Key Shell for BMW 7 Series 740i 750Li 750D 760Li G11 G12 BMW 5 Series 528Li 530Li 540Li G30 G31 BMW X3 G01 BMW i8 (For reference only, please check if your car key is same as the picture)Soft TPU Silicone:Made Made of premium soft TPU silicone for durability, after mirror plating process, the car key has good gloss, light weight, wear-resistant and flexible, no deformationIdeal protection for car key: the key shell is in one complete design, clearly visible on the front and the separate back shell, the car key is fully wrapped. No need to worry about the car key falling off. Effective for you to use the car key while protecting your car key safely Strong signal: the car key signal reception is direct and strong, no signal blocking Easy installation: you can insert your key directly from the center of the key housing and align the front cover, installation is very simple. Content : 1 key shell, 1 key ring