The Elring VANOS Solenoid Seal is a small, circular rubber seal measuring 21.29mm in outer diameter and 1.78mm in thickness. It is specifically designed for use in the VANOS solenoid, which is a critical component in the variable valve timing system of certain vehicles. This seal helps to ensure a tight and reliable seal between the solenoid and the surrounding components, preventing any leaks or malfunctions. It is a genuine Elring product, known for its high quality and durability. This particular seal has a part number of 268030 and is suitable for various vehicle models.