You can be sure that foods will stay fresh in these innovative canisters, which feature a patented valve that forces out air, then locks the stet lower lid securely in place. While the stet lid protects the canister's contents from ultraviolet light, the upper lid is clear, so it's easy to see the quantity of the contents inside. State-of-the-art kitchen canisters have a patented valve system to keep contents fresh. Easy to use: Push the black Airscape lid to the level of the contents using the handle, then flip the handle down and place the clear lid atop your canister. Great for storing all sorts of kitchen staples, from coffee and tea to flour and sugar. Canisters also provide airtight storage for cookies, crackers and other favorite foods. Handsome canisters look great on a kitchen counter or pantry shelf. Commercial-quality stainless-steel construction. Small Canister: 32-oz. cap. Large Canister: 64-oz. cap.