The Kargo Master Clamp & Lock Ladder Rack is uniquely designed to easily lock and secure ladders in place. The clamp arm is easy to reach and can swing down below the crossbars to give a clear path for the ladder to swing up onto the rack. The ladder grips are adjustable, so ladders of varying sizes will fit securely onto the van's roof. The low profile makes it easy to load and unload and allows the van to be driven and parked in lower clearance lots. The Clamp & Lock Ladder Rack is installed using wide mounting feet that bolt directly onto rain the rain gutters: no drilling required. This rack's marine grade powder coat and zinc are corrosion resistant, providing long-lasting durability for an affordable price.