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 1475mm 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.Can be used at the front or rear of the Slimline II Roof Rack. To add rails to BOTH the front and rear, you will need to purchase 2 Front Runner Expedition Rail Front or Back kits. To add rails completely around the full perimeter of your rack, purchase the appropriate width Front Runner FULL PERIMETER Expedition Rail Kit.