Features 1. Complete Sealer Kit: 9-piece set and 4-piece set are optional. 9-piece set includes: 2 manual vacuum pump, 2 wide-mouth mason jar lid, 1 small-mouth mason jar lid, 1 wide-mouth sealer, 1 small-mouth sealer and 1 lid opener with hose. 4-piece set includes: 1 wide-mouth sealer, 1 small-mouth sealer and 1 lid opener with hose. 2. Equipped with Lid Opener: Can't open the sealed mason jar lid in time? Don't worry, we have a dedicated lid opener that allows you to open mason lids easily. The compact size and premium material design makes it durable and portable. 3. Durable & Safe: Sealer creates an airtight vacuum seal on the jar lid to keep food fresh and prevent odors and moisture. The canning jar vacuum sealer is ideal for the safe storage of foods, such as jams, chocolate sauce, rice, mustard and dry foods. 4. Manual Vacuum Pump: Our jar sealer is equipped with a manual vacuum pump. If you don't have a vacuum sealer, you can use a hand pump, which will pump out the air in the mason jar. And the manual portable vacuum pump is very easy to carry when traveling or having a picnic. 5. Can be Reused: The cover can be easily removed with the can opener we have included. Our reusable mason jar lids are made of high-quality materials and have excellent corrosion resistance in daily use while can withstand high and low temperatures. Specification Material: Silica Gel Color: White Size: Manual Vacuum Pump 144.50.8cm, Large Lid 8.91.6cm, Small Lid 7.41.5cm, Wide-mouth Sealer 10.23.5cm, Small-mouth Sealer 8.54cm, Hole 0.6cm, Lid Opener 8.91.81cm Weight: 316g Package Include: 1 Mason Jar Vacuum Sealer Kit