Description:Upgrade your factory-installed, raised-siderail rack to a Yakima rack system. Fits most sedans, vans and SUV's (Sport Utility Vehicles) that have factory-installed, raised-siderail racks. Installs easily with the simple turn of a lever--no tools required. Double-clamping action holds onto both Yakima crossbar and factory siderail. Set of four towers; accepts 4 Yakima SKS lock cores.