Package information: Bottle stoppers that are reliable in quality and sufficient in quantity to easily meet your daily and replacement needs. 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 (pump 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 ideal for home use, as well as restaurants, hotels, cafes, and bars. The included quantity meets multiple usage needs in one package. Easy to use: Insert the wine stopper into the bottle mouth 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 wine and white wine bottles. A practical solution without concern for compatibility issues. Color: Black Material: Silicone Size: 4.2 x 3.3 cm Package Contents: 24 x Wine Stoppers Note: Other items not included. Note: Lighting and display differences may cause the color of the item to appear slightly different from the actual product. Measurement allows an error of +/- 1-3 cm.