Practical: The wine stopper is made of ABS plastic and high-quality metal, ensuring safety and durability. It is reusable and should be hand washed after each use to maintain longevity. (Inner diameter of the bottle mouth ranges from 1.5 cm/0.59 in to 2 cm/0.78 in; please refer to the size chart for details.) Sealing: Compared to traditional corks, this wine stopper features a tapered design for easy insertion into the bottle. It helps preserve the freshness of beverages by preventing air and odors from entering, maintaining the quality of the contents. Convenient: Designed with a modern minimalist style, the metal spherical top is elegant and functional, offering a secure seal. The stopper fits red wine bottles with an inner diameter of 1.5 cm/0.59 in to 2 cm/0.78 in, as well as bottles containing oil, beer, and other non-carbonated liquids. Not recommended for champagne or carbonated drinks due to pressure buildup, which may cause the stopper to dislodge. Suitable for use at bars, parties, festive occasions, weddings, and more.