The Perfect Mason Jar Vacuum Sealer Kit Is Here! Want to keep your stored coffee, oatmeal, herbs, dry fruit, or sauces fresh for longer? Introducing The Ultimate Jar Sealer for Mason Jars! No need to compromise with an inefficient can sealer, a flimsy vacuum sealer for jars, or an expensive vacuum sealer machine. This electric mason jar vacuum sealer allows you to vacuum seal any canning jar in a breeze and prolong the freshness of your food. Package contents: 1*User Guide 1*Can Opener 1*Charging cable 1*Wide Mouth Sealer 1*Regular Mouth Sealer 2*Silicone Hose Connector 2*Wide Mouth Mason Jar Lids （3.5inch） 2*Regular Mouth Mason Jar Lids (2.9inch) 1*Electric portable vacuum pump