Package information: Bottle stoppers that are reliable in quality and sufficient in quantity to meet daily use and replacement needs. Suitable for various occasions and can be shared with friends. Practical bottle stoppers: Resealable wine pump vacuum stoppers designed for use with wine vacuum pumps (pump not included). When used with a vacuum pump, they help remove air from bottles to preserve wine freshness and extend storage life. Applicable occasions: Reusable wine saver vacuum stoppers ideal for home use, restaurants, hotels, cafes, bars, and similar settings. Sufficient quantity provided for immediate needs. Easy to use: Insert the wine stopper into the bottle mouth and use a vacuum pump to remove air until a click is heard, indicating a successful seal. Simple and time-saving operation. Strong adaptability: Black vacuum wine stoppers feature a standard size suitable for most wine bottles, including red and white wine. Practical and compatible without concerns about fit. Color: Black Material: Silica gel Size: 4.2 x 3.3 cm Package Contents: 24 x Wine corks Note: The package includes only the items listed above. Other products are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3 cm.