• The standard internal diameter of 3 cm ensures an airtight and leak-proof seal, preserving the fresh taste of the wine and slowing down the oxidation process. • Made with 100% food-grade silicone, latex-free and BPA-free, these stoppers are durable, unbreakable, reusable, and dishwasher safe. • Compatible with standard bottles of wine, beer, champagne, and soft drinks, allowing you to store bottles securely without fear of leaks. • Solid color design allows for customization and marking of bottles, avoiding confusion. • The wine stopper set is an ideal gift for wine lovers and is perfect for home use, travel, or outdoor activities. • Product dimensions: 3.8 cm wide, 2 cm high, and 12.7 cm long. Total weight: 0.05 kg.