Practical: The wine stopper is made of plastic ABS 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 accuracy.) 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 minimizing exposure to air and preventing unwanted odors, keeping liquids fresher for longer. Convenient: Designed with a modern minimalist style, the metal spherical top offers a sleek, elegant appearance while providing reliable sealing performance. Compatibility: Suitable for red wine bottles with an inner diameter of 1.5 cm/0.59 in to 2 cm/0.78 in, as well as oil bottles, beer, and other non-carbonated beverages. Not recommended for champagne or carbonated drinks due to pressure buildup, which may cause the stopper to dislodge. Ideal for use at bars, parties, festive occasions, weddings, and more.