Royal Sovereign International PSE-N003 Features: -Electric vacuum sealing system with 3 vacuum seal plate covers. -One touch operation makes it easy to use. -3 Vacuum seal plate covers: one - 9-1/4" cover; one - 8" cover; one - 7-1/4" cover. -Electric vacuum pump takes up little space on your counter. -Prepare food and store for the week. -Cover your leftovers to enjoy another fresh meal later on. -Patented airtight design ensures vacuum seal to protect the freshness of your food. -Pump automatically turns off when enough air has been removed.