AIRTIGHT SEAL: These wine stoppers are made of food-grade silicone can air-tight seal your wine bottle to prolong and preserve the wine flavor. .DURABLE & CONVENIENT: No need to worry about saving the cork, as this stainless steel core and silicone stopper is just perfect. Attractive design and longevity guaranteed, this wine stopper will enhance your table's decor, and help everyone enjoy your perfect meal. .COMPATIBILITY: The bottle stopper are suitable for most size bottle use, no matter bottle of wine, drink or any other kinds, you can free to enjoy kinds of wines at the same time, and do not worry about the wine go bad. .FOOD GRADE MATERIAL: 6 Pack wine stoppers are made of food-grade silicone and stainless steel, reusable and durable, Eco-friendly and recyclable material that is not harmful to the environment when disposed or burned. .WINE STOPPERS WARRANTY: We offer 18 months warranty and 30 days no hassle money back guarantee. If you are not 100% satisfied for any reason, simply return your wine stoppers for a full refund. .