Speed merchandise loading, unloading, prevent cargo and vehicle damage. For lighter loads in smaller vehicles. Track holes are close together to assure snug fit and protect rear door. Bulkhead, with bars, secures loads. Bars may also be used vertically. Use vertically or horizontally. Made of 15 gauge galvanized steel 10 Ft. x 2.75 in. 1000 lbs. rated strength.