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 similar settings. The provided 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 and time-saving operation. Strong adaptability: These black vacuum wine stoppers are standard size and fit 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 error is +/- 1-3 cm.