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, helping to preserve and store wine. Applicable occasions: These reusable wine saver vacuum stoppers are suitable for home use, as well as restaurants, hotels, cafes, and similar settings. The included quantity meets multiple usage needs. Easy to use: Insert the wine stopper into the bottle opening and use a vacuum pump to remove air until a click is heard, indicating the bottle has been successfully sealed. This simple process saves time and effort. Strong adaptability: These black vacuum wine stoppers are standard size and fit most wine bottles, including red and white wine. They provide a reliable seal without compatibility concerns. Color: Black Material: Silica Size: 4.2 x 3.3 cm Package Contents: 24 x Wine stoppers Note: Light and display differences may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.