Kotap 20-ft x 30-ft General Purpose Blue Poly Tarp, Item: TRA-2030 FINISHED SIZE: 19-Feet by 29-Feet 4-Inch 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