Outfit your semi truck to be Ready for the Road Ahead with enhanced cargo safety, with the Power Products 90" - 105" Square Jack Cargo Bar. To keep cargo load from smashing into itself, this replacement bar fits snugly between the walls of a truck or trailer, preventing the items from moving or shifting. Built with an adjustable design to expand without putting too much pressure on the walls of a trailer. FleetPride is your First Click in Heavy Duty .