Package information: Bottle stoppers, reliable in quality and sufficient in quantity to meet 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, preserving wine freshness and extending storage life. Applicable occasions: Reusable wine saver vacuum stoppers ideal for home use, restaurants, hotels, cafes, bars, and similar settings. Sufficient quantity provided to meet multiple usage needs. Easy to use: Insert the wine stopper into the bottle mouth 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 fit most wine bottles, including red and white wine. Practical and compatible without concern for size mismatch. 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 variation between the image and the actual item. Measurement error allowance is +/- 1-3 cm.