Convert your Front Runner Slimline II Roof Rack at any time to a classic looking safari style basket shaped roof rack. Please note: this kit only works with 1255mm wide Front Runner Slimline II Roof Racks. Install in minutes. No drilling required. Adds extra cargo support. Attractive, low profile design. Mounting hardware included. Powder coated with the same durable, weather resistant finish as the Slimline II Roof Rack. Manufactured with corrosion resistant, high-density aluminum components. The Expedition Rails add 61mm / 2.4 to the height of the roof rack. The modular bolt on design allows you to remove rail components whenever needed, ie. to mount a roof top tent.DID YOU KNOW? This Front Runner Full Perimeter Expedition Rail Kit can be easily converted to a 3/4, half, or 1/4 sized rail kit using included side rail adapter brackets!!PLEASE NOTE: The side lengths of the Expedition Rails may need to be trimmed to fit the specific length of your rack or for the custom configuration of your choosing. A simple hacksaw can be used to make the cuts. See the fitment guide in the INSTALLATION TAB for more information.