All Front Runner Rack Kits contain installation instructions as well as all the components needed to mount the Slimline II Tray to your vehicle. NOTE: Your vehicle must be equipped with the factory/OEM roof rails in order to use this rack kit. This rack kit can be removed leaving your vehicles roof and roof rails in their original condition. For a stronger expedition grade cargo carrying solution, Front Runner may offer a specific Foot Rail System to mount the Rack Tray to your vehicle. Front Runner Foot Rail solutions can be installed by removing the factory roof rails or used if no factory roof rails are fitted.