This extreme-duty 30 ft. x 40 ft. tarp is our heaviest duty tarp ever made. It provides exceptional protection for equipment, tools, and other materials. Made with a 14 x 14 mesh of double-laminated polyethylene fiber, the tarp is designed to withstand rain, snow, and especially sun. The silver reflective color keeps items underneath cooler compared to conventional tarps. For tying down, the tarp has rust-resistant aluminum grommets.