Package information: Bottle stoppers that are reliable in quality and sufficient in quantity to meet your daily use and replacement needs. Suitable for various occasions and can be shared with friends. Practical bottle stoppers: Resealable wine pump vacuum stoppers 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 and kept fresh. Applicable occasions: Reusable wine saver vacuum stoppers suitable for home use, restaurants, hotels, cafes, bars, and other settings. Sufficient quantity provided to meet your needs. Easy to use: Insert the wine stopper into the bottle mouth and use a vacuum pump to remove air until a click is heard, indicating successful sealing. Simple and time-saving operation. Strong adaptability: Black vacuum wine stoppers in a standard size, compatible with most wine bottles, including red and white wine. Practical and convenient without compatibility concerns. Color: Black Material: Silica gel Size: 4.2 x 3.3 cm Package Contents: 24 x Wine corks Note: Light and display differences may cause slight color variations between the image and the actual item. Measurement error allowance is +/- 1-3 cm.