The product is a genuine OEM air intake boot tube hose designed for a 2005 2006 2007 2008 Audi A4 Quattro 2.0T. It is constructed from rubber material and includes a clamp for installation in the engine compartment. The part number 8E0133356D is specified for this air intake boot, ensuring compatibility with the vehicle. This intake boot is specifically designed for the mentioned Audi model and is not a universal fitment. It is a crucial component for the air intake system to ensure proper airflow for the engine's performance. Used but good, sold as is.