Prepare your semi truck to be Ready for the Road Ahead , with the 3M 2" x 18" Diamond Grade Conspicuity Strip that offers reflective surfaces for other drivers to see. Due to its ability to illuminate the outside or trim of a vehicle when struck by light, this replacement tape is able to help trucks meet DOT requirements for visibility. Constructed with non-metallic materials to prevent corrosion. FleetPride is your First Click in Heavy Duty .