Preen Landscape Fabric - 4ft X 225ft Eco Friendly-contributes to the preservation of the environment-manufactured using 20% or more post consumer and/or post industrial waste Keeps weeds out-small openings in fabric let air and water in No chemicals to harm the soil, pets or environment Allows proper air exchange-oxygen can enter soil and carbon dioxide can escape Maintains soil moisture which promotes deeper root system Will not rot or mildew