Hefty 16-Count 39 Gallon Black Ultra Strong Lawn & Leaf Drawstring Bags are made of 1.1 mil thick plastic, providing superior strength with Triple Action Technology that resists punctures, tears, and leaks. These bags are ideal for collecting leaves, grass clippings, and other yard debris. The convenient drawstring closure ensures easy portability and secure waste containment. Use them for garage and basement trash, party and yard clean-up, storage, donations, and more.