Package information: These stoppers are made of high-quality materials and are sufficient in quantity to meet your daily use and replacement needs. They are suitable for various occasions and can be shared with others. Practical 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 help remove air from bottles, allowing wine to be stored longer while preserving freshness. Applicable occasions: These reusable wine saver vacuum stoppers are ideal for home use as well as for restaurants, hotels, cafes, or bars. The included quantity ensures you have enough for multiple uses. Easy to use: Insert the wine stopper into the bottle opening and attach the vacuum pump. Pump until you hear a click, indicating that the bottle has been successfully sealed. Simple and time-saving operation. Strong adaptability: These black vacuum wine stoppers are designed to fit standard bottle openings and are compatible with most wine bottles, including red and white wine. They provide a reliable seal without worrying about size mismatch. Color: Black Material: Silica gel Size: 4.2 x 3.3 cm Package Contents: 24 x Wine Stoppers Note: Light and display settings may cause slight color variations between the image and the actual item. Measurement tolerances are +/- 1-3 cm.