Root Pouch Grow Bags, 1 Gallon with Handles , Grey 3-4 Year, Bundle of 10 Air Pruning Of Roots Boosts plant growth and yields Pots are washable and last for multiple seasons Can be used with drip systems, overheads & hydroponic flood trays,Rain Gutter Grow Systems Fabric allows roots to breath, Prevents roots from circling Keeps plants warmer in winter & cooler in summer, Pots allow plants to be placed outside quicker