VERY STABLE:The phone mount is designed to be mounted on the upper location of the dashboard where the emergency signal and door lock buttons are located,Doesn't block the air vent, it's capability of holding your electronic devices in placePACKAGE INCLUDE:You will receive 1 PCS alloy, rugged and durable, the product provides strong strength and has a customized appearanceAPPLICABLE MODELS:This car mobile phone mount is compatible with BMW 3 4 Series M3 M4 F30 F31 F32 F33 F34 F36 F80 F82 F83INSTALLATION TIPS:The four corners of the car holder base are equipped with 4 small screws (if there are no screws on the holder, please look carefully for the interlayer of the sponge), and then use the small wrench we included to tighten the screws with the corresponding screws to ensure that your phone is fixed in place