Genuine OEM Volkswagen Shock Absorber Rubber Buffer, part number 5Q0511357S. This rubber component is installed on the shock absorber shaft to cushion its movement, preventing harsh bottoming out and protecting the suspension components from excessive impact. It is located on the rear shock absorber. Weighing 0.126 kg with dimensions of 0.11m x 0.06m x 0.06m, this genuine OEM buffer ensures optimal damping characteristics and long-lasting performance for the suspension system.