This is for a naked mount car top, or truck. It's a Yakima corebar 50" rail system with 2 sets of Yakima kayak Jayhook mounts. All accessories and directions are accounted for. Used this system for two seasons but now have a truck, so I don't need it anymore. All parts were kept inside, and have minor cosmetic dings or scratches, what you would expect when buying used, no chipped paint or rust. If you want to see more about the system go to their website (yakima.com) and you can read more about what specific vehicles this fits. It's fairly intuitive, and you can see even better photos of each piece of equipment.