The Evolve Resealer is the easiest way to store your food without any containers. Reseal all the bags of your edible items and never have to worry about finding an empty food container, ever again. 100% airtight and leak-proof seal for food Easily seals any kind of food packets . No charging required, just insert AA batteries and you are ready to go. It also has a cutter to help you reopen your bags. It creates airtight seal that locks in freshness and flavor.