The Flush Roof Rails is another kind of popular roof rail. The Flush Roof Rails fits perfectly on the roof of the car. It looks shorter, has a beautiful streamline, and is completely connected to the roof. It has also become an ornament for cars. Audi Q7, BMW X1, Jeep guide, Subaru Outback and other models use this kind of vertical rail. It is not difficult to see that its model is slightly higher. roof rack roof rack