Complete kit includes an electric vacuum sealer with both a wide mouth sealer and a standard mouth sealer. It also comes with 5 wide mouth Mason jar lids, 5 standard mouth Mason jar lids, and a USB cable. Compatibility and fit Two sealer sizes are included for regular mouth Mason jars (68mm) and wide mouth Mason jars (84mm). Dishwasher safe. Convenience and operation The electric canister vacuum sealer allows one handed sealing while the other hand steadies the jar. Designed to save effort and time during sealing and storage. Food protection and preservation Sealing Mason jars helps retain flavor, nutrients and freshness of the contents. Helps prevent spoilage and deterioration due to exposure. Use scenarios Meal prep and portioning: seal prepared meals in jars for convenient, ready to eat options throughout the week. Pantry organization: seal dry goods such as coffee, nuts, dried fruits, and grains to maintain aroma and shelf life. Sauces and liquids: seal sauces, soups, or other liquids in regular or wide mouth jars to prevent leaks and preserve taste.