Silver Tarp 5x7 Heavy Duty Poly Tarp. Actual Finished Size 4' 8" x 6' 8". Silver Tarp 5oz. per square yard, 12 Mills thick, 12 x 14 mesh count, 1200 Denier. Heat sealed and rope reinforced edges with grommets every 18 inches. Reinforced Corners. 3 Ply Polyethylene material. Both sides are UV treated.