Polyethylene HIGH QUALITY: With 5 mil thick polyethylene, this lightweight tarpaulin can be used for almost anything; cover equipment and machinery, construction sites, painting or furniture covers. ULTIMATE PROTECTION: Protect your belongings against the forces of nature - during heavy rain and snow storms, our blue tarp will keep your stuff as undamaged and dry as possible. AMAZING VERSATILITY: Multiple sizes let you cover almost anything - cars, boats, motorcycles, grills, tables, benches, roofing and more! FINISHED SIZE: Safety Premium Tarps Run True to Size. ENHANCED REINFORCEMENT: For extra support, poly rope is sewn into the hem from end to end on all sides to defy tearing and deformation - boosted durability and security. RESISTANCES: aluminum grommets, shrink-proof, and UV treated for to defend against the sun, are all added to make our tarps even stronger!