When relaxing, I want to taste good wine, but I am worried that I won't finish it all at once. As time goes on, the wine will come into contact with the air and gradually oxidize. At this point, you need a zero air vacuum storage method for longer preservation. It needs to be paired with the attached bottle stopper, and then use a vacuum pump to repeatedly extract air up and down until a click sound is emitted, which means that the extraction is completed. Product Description 1 Easily store open wine, beverages, oil, and vinegar 2 Spacious design suitable for various sizes of bottles 3 Leak proof rubber sealing ring 4. Long handle easy to lock, providing lever action for easy closure 5 Can be cleaned with a dishwasher, hand washing is recommended Name: Red Wine Bottle Stopper Material: stainless steel+plastic Weight: 16g/piece Size: 9 5*3. 2cm . Package includes: 2 * wine bottle stoppersAttention: Due to manual measurement, please allow for a slight error. Please make sure you don't mind before bidding< br> 2. Colors may vary depending on the monitor, please understand< br> Attention: Hello, please pay attention to your shipping address when purchasing products. If your delivery information (such as name, street, house number, doorbell/email without name, etc.) is incorrect, the order will not be delivered correctly.