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: 

Audi A6 (C6)  All Model 2005-2011 With Air Suspension

- A6/Avant C6 4F 2005 ab Fgstnr. 4F-5-000 001>>

- A6/Avant C6 4F 2006 - 2008

- A6/Avant C6 4F 2009 - 2010

- A6/Avant C6 4F 2011 ab Fgstnr. 4F-B-000 00>>

- A6 Allroad Quattro C6 4F 2007 - 2011

- A6/S6/Avant Quattro C6 4F 2006 - 2008

- A6/S6/Avant Quattro C6 4F 2009 - 2010

- A6/S6/Avant Quattro C6 4F 2011 ab Fgstnr. 4F-B-000 001>>

- A6/S6/Avant Quattro C6 4F 2005 ab Fgstnr. 4F-5-000 001>>

Original spare part number:

 4F0616001 

4F0616001J 

4F0 616 001 

4F0 616 001 J 

4F0 616 001J

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Our advantage:
-OEM quality
-Factory price

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