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: 

Mercedes GL-Class 2007-2012 (X164 W/ Airmatic)

Original spare part number:

A 164 320 10 25 ; 1643201025

A 166 320 03 25; 1663200325

A 164 320 09 25; 1643200925

A 164 320 02 25; 1643200225

A 164 320 10 25; 1643201025

A 164 320 07 25; 1643200725

A 166 320 03 25; 1663200325

A 164 320 08 25; 1643200825

A 164 320 04 25; 1643200425 

Our advantage:
-OEM quality
-Factory price

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