3M™ Diamond Grade™ Conspicuity Markings 997-71ES, Yellow, 50 mm x 15 m, 6/Carton For application to sides and rear of large trucks, trailers and other vehicles to increase their visibility, especially when the vehicle is turning or crossing roadways 3M™ Diamond Grade™ Conspicuity Markings Series 997 is a flexible highly reflective microprismatic lens sheeting for marking curtain sided heavy vehicles. No dirt and water penetration due to edge sealing Pressure sensitive adhesive. Non-corroding and excellent weather resistance