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: 

PORSCHE Cayenne 2003-2010 (all, w/ air suspension)

VOLKSWAGEN Touareg 2002-2010 (all, w/ air suspension)

AUDI Q7 2007-2010 (all, w/ air suspension)

Original spare part number:

Porsche: 95535850321, 95535850331.

Audi / VW: 7L6616503B

Fits to air strut:

7L6 616 020 A; 7L6616020A

7L6 616 020 D, 7L6616020D

7L6 616 020 E; 7L6616020E

7L6 616 019 A; 7L6616019A

7L6 616 019 D; 7L6616019D

7L6 616 019 E; 7L6616019E

Our advantage:
-OEM quality
-Factory price

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