Package information: Bottle stoppers are included in sufficient quantity for daily use and replacement needs. They are 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 (pumps 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 ideal for home use, as well as restaurants, hotels, cafes, and retail stores. The included quantity meets multiple usage needs at once. Easy to use: Insert the wine stopper into the bottle opening and attach the vacuum pump to remove air until a click is heard, indicating a successful seal. Simple operation saves time and effort. Strong adaptability: These black vacuum wine stoppers feature a standard size that fits most wine bottles, including red and white wine. They provide a reliable seal without compatibility concerns. 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 color variations between the image and the actual item. Measurement allows an error of +/- 1-3 cm.