Package information: Bottle stoppers are made of quality materials and provided in sufficient quantity to meet daily use and replacement needs. 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 (pump not included). When used with a vacuum pump, they help remove air from bottles, allowing wine to be stored longer. Applicable occasions: These reusable wine saver vacuum stoppers are suitable for home use, as well as restaurants, hotels, cafes, and shopping malls. The included quantity meets your immediate 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 successful sealing. Simple and time-saving operation. Strong adaptability: These black vacuum wine stoppers have a standard size that fits most wine bottles, including red and white wine. Reliable performance without concerns about compatibility issues. Color: Black Material: Silicone Size: 4.2 x 3.3 cm Package Contents: 24 x Wine Stoppers Note: Light and display differences may cause slight variations in color. Measurement allows an error of +/- 1-3 cm.