Heavy Duty White Tarp 6 OZ., 12'x20' HEAVY DUTY: Tarp is 11-12 Mil thick, Fabric weighs 6 oz. per square yard PERFECT FOR USE IN ALL WEATHER: This polyethylene tarp is UV treated, Waterproof, Mildew, Acid and Tear resistant. Great for use in direct sunlight, rain, snow and more EASY TO TIE DOWN: Rustproof aluminum grommets approximately every 18 inches and at the corners TRANSLUCENT: Allows for light to pass through- Excellent for areas where you need light and protection from the elements CUT SIZE: Measurement of this tarp will be approximately 3% to 5% shorter than listed size