Powerful Mason Jar Sealing: Lock in freshness like never before! Comes with 10 mason jar lids(regular*5+wide*5). Our Mason Jar Vacuum Sealer Kit is designed for both regular and wide-mouth mason jars. With just a single button press, it creates an airtight seal, ideal for dry goods, liquids, and home canning. Extend the shelf life of your food up to 5 times longer. IMPORTANT TIPS: 1) Fully charge the vacuum sealer when the battery is low instead of keeping it in a constantly low-charge state to extend its lifespan; 2) Since inhaling too much water may damage the motor, dry food before sealing; 3) After sealing, ensure the bag is tightly sealed to prevent air leakage. One-click start & Auto-stop: The LED display indicates battery level and, during operation, shows the elapsed time. One-click start, super easy to use, after 120s, the device will automatically switch off to conserve power. Easy Food Preservation: Whether you're canning your favorite homemade jams, storing leftovers from dinner, or preserving the harvest's bounty, our sealer has you covered, keeping food fresh up to 5 times longer than non-vacuum storage methods. Keep food quality and reduce food waste effortlessly. Small but Mighty: Old-fashioned vacuum sealers take a lot of space in your kitchen, not to mention the huge single-use plastic rolls and waste. The hand-held vacuum sealer is the size of a pepper grinder. Its compact design makes it the ultimate space-saving solution.