The VacMaster Canister keeps foods fresh up to 5x longer than any other storage container on the market. Their durable design and graduation marks make them perfect for portion control and table-ready dishes. Plus, they are stackable, making storage a snap! The "Lock" and "Vacuum" features ensure a secure, dependable seal. The VacMaster Canister is microwave- and refrigerator-safe, making it convenient; easy to use; and ideal to move, store, or place on the counter top for easy access. Capacity: 2.5 qt.