Dewitt SBLT3300 Sunbelt Ground Cover Weed Barrier, 3 x 300-Feet Sunbelt ground cover weed barrier UV stabilized and permeable to air and water and a low cost, ecology safe alternative to herbicide use Allows air and water to penetrate for worry-free irrigation Guaranteed to last five years in direct sunlight; for greenhouse and outdoor use Measures 3-feet wide by 300-feet long; and available in 3.2 ounces