Made of shatterproof flexiglass, each 2.5 gallon Snapware® Airtight Container holds approximately 42 cups of dry goods. The 4-cup Snapware® container is a good option for short-term dry food storage for the countertop, in the pantry, or on the shelf. Great for storing items like cereal, flour, sugar, chips, pretzels, candy, and cookies. Snapware® guarantees freshness, because it has a patented double sealing system between the jar and the lid. The flexiglass allows you to see what's inside the container without opening the lid.