Kotap 40-ft x 50-ft General Purpose Blue Poly Tarp, Item: TRA-4050 FINISHED SIZE: 38-Feet 6-Inch by 49-Feet Rust-Proof Aluminum Grommets every 3 -Feet and on each corner Woven and coated polyethylene All edges heat-sealed and reinforced with polyethylene rope Rot and Shrink Proof