2 Rear BILSTEIN Shocks with your purchase!VERIFIED FIT: 2006 Mercedes-Benz CLS55 AMG (2006)RearType: Nitrogen Gas Charged, Internal Design: Rear Monotube, Adjustable: Rear , Extended Length (IN): Rear 22.73 Inch, Compressed Length (IN): Rear 16.93 Inch, Rod Diameter (IN): Rear 1.41 Inch, Upper Mounting Style: Rear Stem, Lower Mounting Style: Rear Eyelet, Valving Type: Rear Deflective Disc Valving, Rod Finish: Rear Polished, Rod Material: Rear Steel, Body Color: Rear Black, Body Material: Rear Steel, *Please ask us full technical details at the Questions field at bottom of the page.FAST SHIPPING & WARRANTY: We ship from various warehouses throughout the USA under the manufacturer`s warranty!.