Airtight storage for your dry goods. Keep pests out and freshness in. The Rectangular 2 size is perfect for 5 lbs of flour or sugar, 1 lb. of lasagna or wide egg noodles, 5 lbs of rice, 12oz of potato chips, 2 lbs of Oreos or graham crackers, 1 lb of saltine crackers or pretzels, 2 lb coffee beans, 3lbs of ground coffee, or a loaf of bread! There are many other items that are perfect in this size and these stack perfectly with other rectangular s or 2 super ovals stack perfectly on top.