4. One Touch Lock, Fresh Ingredients, Stayed Fresh 3. Internal structure, built-in cutting knife, for opening, sealing, air extraction/home storage Features: 1. One to seal, one press to vacuum, the food will be light and delicious, and the freshness will be fixed 2. The high-quality inner core has great power and can maintain the high suction power of the vacuum pump for a long time. 5. The food will not smell when going through the refrigerator. This is a visible and practical solution to the problem of odors in the refrigerator.