All Season Heavy Duty Poly Tarp (12x25 (11'4" x 23'4")) 14x14 Weave 10.5 mil 6 oz. fabric for Superior Strength Grommets spaced every 18 inches for more secure fit Reinforced black plastic corners Treated with UV-inhibitors to increase lifespan of tarp in direct sunlight Finished size of tarp approximately 5-10% smaller due to seams & hems