High density, rip resistant polyethylene material. Uv resistant, 4-5 mil. Thick. 8x8 weave count per square inch, 1000 denier. Lightweight, approximately 2.8 ounce per square yard. Heat sealed seams. Rope-lined, heat sealed or double stitched hems. Aluminum rustproof grommets approximately 2 feet apart and in each corner. (Color: BLUE; Size: 30 X 50)