Package information: You will receive 30 pieces of bottle stoppers, reliable in quality and sufficient in quantity to meet daily use and replacement needs. They are suitable for various occasions and can be shared with friends. Practical bottle stoppers: These resealable wine pump vacuum stoppers are designed for use with wine vacuum pumps (pumps not included). When used with a vacuum pump, they help remove air from bottles to assist in wine preservation. Applicable occasions: These reusable wine saver vacuum stoppers are suitable for home use, restaurants, hotels, cafes, bars, and shopping malls. The quantity provided meets typical usage requirements. Easy to use: Insert the wine stopper into the bottle mouth and use a vacuum pump to remove air. A click sound indicates successful sealing. Simple operation helps save time. Strong adaptability: These black vacuum wine stoppers are standard size and fit most wine bottles, including red and white wine bottles. They are practical solutions without compatibility concerns. Size: 4.2 x 3.3 cm Material: Plastic Color: Black Package Contents: 30 x Wine Stopper Note: The package includes only the items listed above. Other products are not included. Lighting and display differences may cause slight color variations between the image and the actual item. Measurement allows an error of +/- 1-3 cm.