Engineered for today's tow vehicles. . . The Aero Shield's aerodynamic design reduces wind resistance and practically eliminates turbulent winds trapped between the tow vehicle and the fifth wheel or trailer, ensuring smoother handling and improved performance. The Aero shield can be adjusted to virtually any angle allowing maximum aerodynamic efficiency and easily folds down when not in use. Ships completely assembled (includes mounting hooks #2, #6, #8, #9) ready for installation. Aero shield Wind Deflectors are compatible with a variety of vehicle models. Visit the Icon Direct website's Application Guide for Aero Shield Wind Deflectors for manufacturer recommendations to ensure a proper fit before purchasing.