Overstock Projex 20 Ft. W X 20 Ft. L Heavy Duty Polyethylene Blacksilver TarpProtect large items or areas from the elements with this reversible, heavy-duty tarp thats black on one side and reflective silvertone on the other side. The UV-treated, 10-mil material fends off weather, fading, and tears for reliable utility. All edges of this tarp are h..