Genuine OEM Audi Flexible Duct Hose, part number 8K5877201. This flexible hose is part of the sunroof drainage system, designed to channel water away from the vehicle's interior and prevent leaks. It connects to the sunroof frame and routes water to the exterior. The material is durable and resistant to degradation. Genuine OEM parts ensure the correct flexibility and fit for effective water management in your sunroof system.