AIRTIGHT SEAL: These wine stoppers are made of food-grade silicone and can airtightly seal your wine bottle to extend and preserve the wine's flavor. . DURABLE AND PRACTICAL: You don't have to worry about saving the cork, as this stainless steel core and silicone stopper is absolutely perfect. Attractive design and guaranteed longevity, this wine stopper will enhance your table decor and help everyone enjoy your perfect meal. . COMPATIBILITY: The bottle stopper is suitable for most bottle sizes, whether wine bottle, beverage or other varieties, you can freely enjoy different types of wines at the same time and not worry about the wine going bad. . FOOD GRADE MATERIAL: 6-pack wine stoppers are made of food-grade silicone and stainless steel, reusable and durable, environmentally friendly and recyclable material that is not harmful to the environment when disposed of or burned. . WINE STOPPER GUARANTEE: We offer an 18-month warranty and a 30-day hassle-free money-back guarantee. If you are not 100% satisfied for any reason, simply return your wine stoppers for a full refund. .