The roof racks were mounted on factory rails of my GMC Terrain, I sold the vehicle and kept the racks in case I would need them for another vehicle later but I will not need them. They are in good working condition. I have 2 keys to lock and unlock the racks and one special key that allows you to remove the locks in case you ever lose both keys and you would want to change the locks by new ones. The racks will fit pretty much any vehicle that has factory rails that goes front to back of the vehicle as those Thule roof rack clamps on your factory rails, see the pictures . Message me if interested 819-329-5196