Full color printing on 4mm coroplast, this sign will hold up in all types of weather and continue to look great for months outside. Coroplast is a great material similar to cardbord in that it is fluted, can be printed, folded, grommeted, and cut to any size. The similarity ends when they are both put to the test outside. Coroplast being made of a plastic material helps it be able to withstand all types of weather that is thrown at it. Look below to add grommets for your sign to be easily mounted with bungi cords or zipties. Choose your size and then click start!