Grower’s Edge Nylon Storage Bags are the thickest and most durable bags on the market today. With a 1 mil thickness, these bags seal in the freshness and odors of your favorite foods. The storage bags are 19 in x 23.5 in and can hold up to 34 pounds of food. Manufactured to have multiple uses, these bags can handle extreme heat (up to 450 degrees) and can be frozen as well. Proudly made in the USA.