CRUZ Airo Bars for vehicles with raised siderails feature a special aerodynamic design that reduces drag and wind noise. These roof racks feature clamps with rubber inserts that mould to the shape of your vehicles siderails as they are tightened. The bars come fully assembled, ready for easy installation. The result is a strong, safe, TUV Certified system. Includes both bars and everything you need to fit the racks to your vehicle. These Airo bar siderail mount roof racks are lockable.