PackageComes with 2 kinds of bottle stoppers, 2 pieces champagne bottle stoppers, 2 pieces wine bottle stoppers. Size: 3.7 x 5.7cm / 1.46 x 2.24inch, 2.1 x 9.3cm / 0.83 x 3.66inch. Premium MaterialWine bottle stoppers are made of durable plastic or stainless steel(champagne bottle stopper is stainless steel), which is anti-rust, no crack or fade, safe and non-toxic, convenient for daily use. Practical Wine AccessariesBottle stoppers offer an airtight seal that prevents carbon dioxide from escaping and thus make sure that the fresh taste of wine could keep for a long time after the bottle is opened. Easy to UseWhen sealing, push the stainless steel wine stopper to the top of your wine or champagne, and just need to open the top button when you open it again. After using, simply rinse the bottle stopper with water and allow it to dry. They are so easy to clean and store. Wide ApplicationWine bottle stoppers fit most bottles of wine and champagne. General (15-20mm) diameter wine bottles are suitable!(Please check the size in advance before your purchase)