Thule AeroBlade Edge Raised Rail Rack Integrated bar and foot design combines foot and bar together for a low-profile, aerodynamic package, and pre-assembled for fast, easy installation for vehicles with raised rails WindDiffuser technology disturbs airflow to reduce noise and drag for improved fuel economy Arched lightweight bar follows the curves and lines of your roof, complementing your vehicle Boxbeam load bar structure creates the strongest aftermarket load bars in the world Sold 1 bar per pack-Check Thule Buyer's Guide prior to purchase.