Covalence Plastics 4ML BLK 12X100 12-by-100-Foot 4-Millimeter Black Tyco Product Description 12'x 100', 4 Mil, Black, Polyethylene Film. From the Manufacturer Uses include an all purpose cover, vapor barrier, dust barrier, landscaping and concrete curing cover. Features The product is good to use Good quality product Manufactured in China USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.