The SmartSealer uses battery power to heat and seal in the freshness of your favourite snacks. The handy magnet on the back ensures it is always within reach when you need it, and the convenient built-in bag cutter opens up the sealed snacks.Sealing machines are used to seal containers with liquids, granules, powders, and sprays for consumer, bulk, and original equipment manufacturer (OEM) supply shipments. Packaging materials include aerosol containers, bags and pouches, blister packs, bottles and jars, as well as cartons and boxes.