Equip your semi truck to be Ready for the Road Ahead , with the SafeTruck by Ms.Carita 18" x 18" Jersey Safety Flag, a key piece that acts as a ready-to-go warning measure. By utilizing a straightforward design, this replacement flag is able to function as a warning signal for emergency situations, work spaces, and roadside hazards. Built with rugged and flexible materials to withstand rough weather conditions. FleetPride is your First Click in Heavy Duty .