The Thule WingBar Edge 9585B is a premium aerodynamic load bar for an exceptionally quiet ride and easy installation of accessories. This products is a 2-pack. Thule WingBar Edge 9585B Features Smoothly arched bars that fit close to the roof WindDiffuser technology disturbs airflow to reduce noise and drag for improved fuel economy TrailEdge design reduces aerodynamic drag by allowing clean air separation from bar BoxBeam internal structure creates an exceptionally strong load bar Included AcuTight Tensioning Tool indicates when the rack is safely and properly attached to vehicle Upper T-track allows fast installation/removal of accessories (Thule Xadapt required for some carriers, see Thule Buyer's Guide for details) Pre-assembled bar and foot system installs quickly Securely mounts to vehicle with included locks Cars with sun roof: Due to the racks' low fit on the car, it may not be possible to open the sun roof when the racks are installed. Please check clearance before opening your sun roof. Check the Thule Buyer's Guide to find out which roof rack fits your car Thule WingBar Edge 9585B Technical Specifications Loading width 78 + 86.4 cm Maximum load 75 kg. Please also check the maximum roof load capacity of your vehicle. Equipped with T-track Fits Thule WingBar Fits AeroBlade Locks included One Key System compatible