The Sport Series Rack has its own design and unique style that blends itself to the modern SUV. The front of the rack has been redesigned so the front of the rack is tapered back. The vertical dividers have a unique design to help reduce wind noise commonly associated with empty roof racks. The Sport Series Racks feature 4" high sides and in most applications will mount directly to the factory O.E.M. roof rack. They can be shipped UPS , and come complete with all mounting hardware. Rack is 67"W by 60"L, will fit 2003-2008 Hummer H2/H2SUT, mounts to factory rack.