Heavy Duty Coil Tarp - 7'x7'x7' - 18 oz. Black Tarp7 7 7 Heavy Duty Coil Tarp 18 oz PVC Black This 7 7 7 coil tarp (also called a coil bag) is built for heavy duty performance on the road. Designed to shield steel coils, aluminum rolls, or cable spools during transport, it fits securely over round loads whether positioned shotgun or suicide style. Constructed from rugged 18 oz PVC coated polyester, this tarp offers reliable protection from the elements while maintaining flexibility and durability.