The Malone SteelTop Universal Raised Railing Mounted Roof Rack is an affordable alternative for transporting bikes, kayaks, canoes, stand up paddle boards SUP, surfboards, skis, snowboards and roof-top cargo boxes. Malone's rust resistant, vinyl coated square steel load bars are designed to fit most factory installed raised side rails. The Malone Universal Cross Railing Roof Rack is rated to carry the maximum weight rating of your factory installed raised railings. Malone's Cross Rail System is assembled and ready to install included tools. Locks and keys are included to lock the crossbars to your factory raised railings. The complete rack system includes the following components: Two square crossbars, four integrated towers, four locks, two keys and four end caps.