Here is used a very durable material. 

Made in China quality CR Rubber, Bone material is 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 (C7/4G) 2012-2015

Original spare part number:

 

4G0616001K; 4G0626002K

Our advantage:
-OEM quality
-Factory price

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