Upgraded high-performance motor with strong suction power - solving the problem of insufficient suction power for large bottle caps. Our handheld vacuum sealers create a vacuum environment that instantly seals in flavor, nutritional value and freshness. Long-term Food Preserver - Use with confidence, our jar manual vacuum sealer is made from non- food-grade material and you can use it to extract the air from your mason jars. Our electric vacuum sealer for mason jars can help inhibit bacterial growth, prevent moisture from affecting food in the jar, extend freshness and reduce food waste. Automatic Canning Vacuum Sealer for Mason Jars, Free Your Hands - The electric vacuum sealer is easy to use and requires no manual pressing; place the mason jar vacuum sealer in the center and press it firmly against the jar lid. Just press the button and wait 20+ seconds, saving time for busy home . Portable Rechargeable Vacuum Pump - Unlike traditional vacuum pumps that come with cords and pipes, this compact rechargeable airtight canister is cordless and portable, making it the Perfect for travel, camping and picnicking. Material: ABS+PCB colour: Black Package Contents: 1 x Host 1 x USB data cable 6 x Supporting sealing caps (3 large and 3 medium) 1 x Bottle opener Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.