Kotap 12-ft x 18-ft General Purpose Blue Poly Tarp, Item: TRA-1218 FINISHED SIZE: 11-Feet 4-Inch by 17-Feet 6-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