The Sachs Strut Bump Stop - 900186 is a rubber component designed to absorb shock and prevent metal-to-metal contact in the suspension system of a vehicle. It is specifically designed to fit onto a strut assembly and helps to cushion the impact of bumps and uneven road surfaces. This helps to improve the overall ride quality and stability of the vehicle. The bump stop is made of high-quality rubber material that is durable and long-lasting. It is an essential component for a smooth and comfortable driving experience.