DSI Vacuum Food Storage System, Air Pump Plus 3 Containers Keeps food fresh up to 5 times longer Vacuum locks in freshness and prevents premature spoilage and food decay Easier to use than other vacuum bag systems; no set up or messy storage required. Light weight air pump is convenient and is always ready to use. It's wall mountable to save counter space Containers are stackable, shatter resistant and microwave-, freezer- and dishwasher-safe