When you store foods using the Useful UH-VS140 Vacuum Bag Sealer machine, you can preserve the food for as much as five times longer than would be possible with conventional storage methods. With just the push of a button, the UH-VS140 draws all of the air out of the bag surrounding your food item, creating the ideal conditions for long-term storage. With a press of the "Seal" button, the unit quickly heats a strip to seal the airtight bag shut, ensuring the food within will remain preserved. This commercial quality machine is priced to be affordable for household use, and will quickly pay for itself in terms of savings through reduced food waste. The built-in piston air pump and heat-sealing strip will last for hundreds of uses, allowing you and your family to preserve all your favorite foods over and over again. 5 pieces of 8.66" by 11.81" and 11" by 15.75" vacuum bag strips come included with the sealer, so you can start preserving foods the first day you own the unit.