Ziploc® Big Bags, X-Large, Secure Double Zipper, 4 CT, Expandable Bottom, Heavy-Duty Plastic, Built-In Handles, Flexible Shape to Fit Where Storage Boxes Can't

Stand & fill. Expandable bottom. Zipper closure for easy, secure seal. Quick carry handles make it easy to transport. Made from thick, semi-transparent plastic. A family company since 1886. - Fisk Johnson.