The SteelTop Roof Rack Crossbars let you carry gear and accessories on the roof of your vehicle with raised, factory side rails. This complete roof rack system includes two steel square crossbars and four towers. The full-length crossbars extend past the towers to give you more mounting space for carriers. The towers have built-in locks to protect the rack from theft. The rack clamps onto your raised side rails and tightens down with the included tool, so it's easy to remove and install. Limited lifetime warranty. FEATURES• Corrosion-resistant steel bars for longer life• Spacer blocks to fit smaller bar profiles• Key locking security attachment towers• Square shape fits most rack accessories• Complete system ready to install• Simple installation with no additional tools required• Lifetime WarrantySPECSLength: 65"Width: 3.5"Height: 3.5"Load Capacity: 165 lbs. WHAT'S IN THE BOX2 Crossbars with Towers and Removable Lock Shields4 End Caps4 Rubber Spacer Blocks2 Keys1 6mm with Long Arm, Ball End Allen WrenchInstruction Manual | Malone SteelTop Roof Rack Square Crossbars, 65" | The House