Package information: Bottle stoppers are reliable in quality and sufficient in quantity to easily meet your daily 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 effectively remove air from bottles, allowing wine to be stored and preserved longer. Applicable occasions: These reusable wine saver vacuum stoppers are suitable for home use, as well as restaurants, hotels, cafes, and bars. The included quantity meets multiple usage needs at once. Easy to use: Insert the wine stopper into the bottle opening and attach the vacuum pump. Pump until you hear a click, indicating the bottle has been successfully sealed. Simple and time-saving. Strong adaptability: These black vacuum wine stoppers are standard size and fit most wine bottles, including red and white wine. They are practical and reliable without worrying about compatibility issues. Color: Black Material: Silicone Size: 4.2 x 3.3 cm Package Contents: 24 x Wine Stoppers Note: Other items not included. Lighting and display differences may cause the color to appear slightly different from the actual item. Measurement allows for an error of +/- 1-3 cm.