Watershed Innovations HydraTarp 12 Ft. X 16 Ft. Super Heavy Duty Waterproof Tarp - 16mil Thick - White / Brown Reversible Tarp Super Heavy Duty - 8 oz per square yard weight material with 16 mil thickness - Industrial Strength Double re-enforced corners with rope hem along all four edges. Brass Grommets spaced every 18" UV Protective coating protects your valuable assets and ensures longer life of the tarp. These are full length tarps and measure within +/- a few inches of the full listed size. HydraTarps come with a No questions asked 30 Day Money Back Guarantee and a One Year Warranty