Package information: Bottle stoppers that are reliable in quality and sufficient in quantity to easily meet your daily and replacement needs. These practical bottle stoppers are designed for use with wine vacuum pumps (pumps not included) and help 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, restaurants, hotels, cafes, and other settings. The included quantity provides ample supply for immediate needs. 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. This simple process helps save time and maintains wine quality. Strong adaptability: These black vacuum wine stoppers are standard in size and fit most wine bottles, including red and white wine bottles. They are practical and reliable without concerns about compatibility. 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 vary slightly from the actual product. Measurement allows an error of +/- 1-3 cm.