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 (pump not included). When used with a vacuum pump, these stoppers help remove air from bottles, preserving wine freshness and extending storage life. Applicable occasions: Reusable wine saver vacuum stoppers ideal 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 neck and attach the vacuum pump. Remove air from the bottle until a click is heard, indicating a successful seal. Simple and time-saving operation. Strong adaptability: Black vacuum wine stoppers in standard size, compatible with most wine bottles, including red and white wine. Practical and convenient without concern for size mismatch. Color: Black Material: Silica gel Size: 4.2 x 3.3 cm Package Contents: 24 x Wine stoppers Note: Light and display differences may cause slight variations in color between the image and actual item. Measurement allows an error of +/- 1-3 cm.