Tarpaulin, Flame Resistant, Tarp Material 3.5 Oz/Yd Polyethylene, Cut Size 20 x 20 Ft., Finished Size 19' x 19' 6 In, Thickness 5.1 Mil, Color Blue/Blue, Resists Water, Mildew, and Fire, Heat Welded, Reinforced with Boltrope Seam, Aluminum Grommets, NFPA