This rack from AA Products is mounted onto the roof and has a carrying capacity of 350 pounds. The two bars can be extended from 35 inches up to 57 inches and have a heavy-duty steel mounting base. They are also available in white matte and sandy black. Installation is easy but not drill-free. The powder-coated steel is tough and resistant to rust and wear with a wide mounting base. The polyfoam gasket used to secure the bars also adds to the overall safety and stability of this accessory.