Features: Premium Silver Heavy Duty, 12 Mil polyethylene, 12 x 14 Mesh count, 1200 Denier, 6 oz/sq. yard, Aluminum grommets every 18 inches approximately, 3 Ply material, 100% UV protection, Rot proof, Acid resistant, Tear resistant, Arctic flexibility.*Note: ALL tarps are 4-6 shorter by length and width than the stated cut size.