Here is used a very durable material. 

Made in China quality CR Rubber, Bone material iis Nylon PA66
The long experience in the field of Air suspension, led to the highest quality. 
Thousands of satisfied customers confirm the superior quality of this product.

New O-rings and air connection are included. 

Can be installed in the following vehicles: 

BMW 5-Series F07 F11 10-13

5-Series Gran Turismo (F07) Models Include: 

520d, 530dX, 530d, 535dX, 535d, 535i, 535iX, 550iX, 550i

5-Series Touring Wagon (F11) Models Include:

520d, 520i, 523i, 525d, 528i, 530d, 530i, 535d, 535i, 550i.

Original spare part number:

37106781827

Gran Turismo

Touring Wagon

37106781843

37106781828

37106784380 

37106781844

37106784378

37106784381

Our advantage:
-OEM quality
-Factory price

-Personal advice
-We have a 1 years warranty without mileage limits
-Worldwide express delivery is our standard