Package information: Bottle stoppers are included in sufficient quantity for daily use and replacement needs. They are suitable for various occasions and can be shared with others. 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, allowing wine to be stored longer. Applicable occasions: These reusable wine saver vacuum stoppers are ideal for home use, as well as restaurants, hotels, cafes, and other commercial settings. The provided quantity meets multiple usage needs at once. Easy to use: Insert the wine stopper into the bottle opening and attach the vacuum pump to remove air until a click is heard, indicating the bottle is properly sealed. Simple and time-saving operation. Strong adaptability: These black vacuum wine stoppers are standard size and fit most wine bottles, including red and white wine. They are practical solutions without concern for compatibility issues. Color: Black Material: Silica Size: 4.2 x 3.3 cm Package Contents: 24 x Wine corks Only the above items are included; other accessories are not part of the package. Note: Lighting and display differences may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3 cm.