Hygrade Heavy Duty Super Cover Poly Tarp, 10 Mil, Silver/Black, 20'L X 30'W It Is Sun And Fade Reistant And Rot,Tear And Rust Proof With its rope reinforced hem, heat sealed seamsand grommets every 18 inches, it is widely used by contracters, campers, farmers and pointers for covering construction sites, farm equipment, sports equipment,machinery, trucks, boats, and tools Additionally, it has sturdy black corner bars and is 50% stronger than the regular tarps Tarps are packed in heavyweight poly bags.