Swivel lock design: adopts a rotating design, which is more efficient and easier to use. It can be unlocked by rotating the upper part of the cork, and then tightly plug it into the bottle mouth. And then turn the champagne cork. The upper part is locked back to the position to save sealing. The tight silicone sealing champagne cork can keep your wind fresh and preserve the natural flavor of the wine for several days. Suitable for standard wine, beer, champagne and soda bottles, including some larger styles. It can be used in various occasions, such as weddings, houses and bars. A great gift for the best friend who loves wine. The internal sealing parts of the wine stopper are selected for food grade silicone materials and are safer. The round wine stopper shell is made of durable ABS material, which is not easy to wear and easy to clean. Specification: Material: ABS Color: Black Size: app. 39x40mm/1.53x1.57in Quantity: 1 pc Note: Transition: 1cm=10mm=0.39inch No retail package. Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: 1 x Mini Wine Stopper(other accessories demo in the picture is not included.)