Prime Design's all aluminum AluRack cargo carrier provides support for loads, long or short, up to 300 lbs. with five heavy duty reinforced extruded cross supports. Full-length side rails made of .080 thick aluminum tube help protect cargo and keep it on the rack. For convenience add a quick clamp upgrade to either the street or curbside of the rack. Each upgrade includes a gas strut assisted hold down that keeps your ladder secure and in place. A quick turn of the handle releases the clamp and your ladder can be easily removed. A padlock (not included) can be applied to the handle to help prevent unwanted removal. Rack mounts in a full length aluminum channel that attaches to the vehicle utilizing factory mounting points. Racks which are fully anodized, come complete with stainless steel hardware and mount using a supplied mounting channel that attaches to the roof of the van into existing threaded holes in the roof provided by the manufacturer.