ATE Pro. USA 12-ft x 12-ft Heavy-Duty Industrial Strength. Premium Quality 10-mils Thick Silver Poly Tarp 10 mils thick --- super heavy duty. 190 grams, 14 x 16 mesh. Double reinforced with plastic corner and grommets approximately every 18 inches for added strength. Tear resistant. Water proof. Mildew resistance. Weather flexibility. Laminated on both sides. Washable and reusable. Rust proof aluminum Grommets.