This Febi Bilstein Seal Ring (Part Number: 05334) is made from NBR (nitrile butadiene rubber) and is black in color. It has a thickness of 4.5 mm and an inner diameter of 30 mm. The weight of the seal ring is 0.002 kg. It is sold individually and one quantity is included in this package. Please ensure compatibility with your application by checking the item information carefully before purchase. Installation should be performed by a competent individual, and products are typically supplied without fitting instructions. This part is compatible with OEM references including MERCEDES-BENZ 0039976948 and A0039976948.