Pit Posse 11021BK 2' S Track Anchor Aluminum Tie Down Track Rail System Enclosed Cargo Trailer Van Truck Black Made of aircraft quality aluminum This sturdy and attractive track offers versatility and durability Can be mounted to floors or walls Fittings are spring loaded and snap securely into place&#44; yet can be moved to different positions Vertical lift capacity of 4000 pounds with single stud fittings