High quality silicone: Made of food grade silicone and stainless steel, it is reusable and durable, safe and healthy. Overall design: Two sections of silicone provide good sealing performance with a lever handle. The handle is depressed and the stopper expands to seal the bottle opening. Keep fresh: The grooved design on the interior wall helps keep your wine fresh and delicious. It slows down the oxidation process, seals better than the original cork, prolongs the freshness of the wine, and maintains its natural aroma. Easy to use and reuse: 5 different colors can be used as bottle markers, allowing you to identify wine bottles easily and creatively. No need to worry about using the wrong bottle. Wide range of uses: Suitable for all red and white wines, and can also be used to seal mineral water, beer, champagne, vinegar, oil, and more. Ideal for home bars, birthdays, parties, or celebrations.