JWS Super Bottle Stoppers reseal opened glass bottles and create an airtight seal that locks in freshness and preserves carbonated beverages longer. Great for soda, seltzer, sparkling wine or cider, and other carbonated beverages. Fizz stays in to keep beverages fresher, longer. No more flat soda! Fits most standard-sized glass bottles. They replace the bottle cap once its been opened. Easy to use, simply insert into the bottleneck and flip the top lever to lock in freshness. Flip the top up and remove the stopper to pour. Its great for wine bottles, liquors, and spirits, coffee syrups, extra virgin olive oil, or EVOO, canola oil, and vegetable oil, plus balsamic vinegar, and more. Use it to protect contents from debris and bugs for effortless outdoor entertaining, too. Theyre compact for easy storage in the kitchen gadget drawer or with bar supplies or other wine accessories. Made in Germany with food-safe plastic stopper and rubber seals, JWS Bottle Stoppers will never rust. Theyre reusable and easy to clean. Hand wash in warm, soapy water as needed. Set includes 2 Bottle Stoppers.