Front & Rear Parking Sensors for BMW 1/2/3/4 Series - 4PCS Parking Aid Kit Parking Aid Sensor Front & Rear 66202220666 66209261582 66209261587 for - F20 F22 F30 F31 F32 F33 ,4PCS Compatible: The parking sensor fits for 2016-2018 F32 F31 F30 F22 F20. Part Number:66209261582 66209261587 Function: The backup sensor, which detects precisely the distance between your car and the obstacle, can alert you when you are reversing to the limit distance, and improve driving safety Premium & Easy: Made by professional manufacturer to the long-lasting quality. Designed according to factory standards. You just need to remove the old sensor and install the new one. Quite easy colour:Black Material:ABS Package Contents: 4 x Parking Aid Sensor Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.