Harold Import Company JWS &nbsp;Flip Top Expanding Fizz and Soda Seltzer Wine Liquor Oil Vinegar Bottle Stoppers (Set of 2), Stainless JWS Bottle Stoppers reseal opened glass bottles and create an airtight seal that locks in freshness and preserves carbonated beverages longer Made in Germany from food-safe plastic stopper and rubber seals; will never rust; flip top expands rubber seals to lock in freshness Perfect for soda, seltzer, sparkling wine or cider; use for wine, liquors and spirits, coffee syrups, EVOO, and vinegar, too Easy to use; fits most standard-sized glass bottles; protects contents from dust and bugs for outdoor entertaining, too Set of 2; reusable; compact for easy storage; hand wash in warm, soapy water as needed