This is a complete cross bar roof rack from Inno, Japan's top car rack manufacturer. It mounts to your car's factory rails that are raised above the roof surface. This rack comes with 4 base feet, 2 cross bars, and 4 locks with keys. The feet have a rubber coated stainless steel strap that wraps around your rails. You can mount bicycle carriers, kayak racks, a cargo box, and other gear to these bars. They will accept many Inno, Thule, Yakima, and other roof rack accessories. Load capacity is 140 pounds.