Secure Freshness: The 15piece beer lid caps use an airtight swing design to preserve craft carbonation, delivering reliable freshness and spill storage for homemade beverages. Ample Supply for Home Brewing: This set includes 15 replacement caps compatible with stainless steel and silicone bottles, providing convenient extras to maintain continuous bottling without interruption. Durable Material and Easy Maintenance: Made from stainless steel and silicone, these bottle tops resist corrosion and are easy to clean, helping to extend the life of your bottles and keep a tight seal through repeated use. UserFriendly Swing Mechanism: Springloaded lids open and close with ease, offering quick access to contents while securely sealing the bottle, suitable for frequent use in kitchen and dining settings. Compatibility and Performance: Specifically designed to fit stainless steel and silicone bottles, ensuring a reliable seal and consistent carbonation retention across batches. Use scenarios: Home brewing and bottling: Ideal for beer, cider, kombucha, or other homemade beverages where preserving carbonation and freshness is important. Kitchen and dining storage: for storing homemade drinks or flavored syrups in the fridge or on the counter without risk of leaks. Replacement and continuity: Keeps spare caps on hand to prevent bottling interruptions during ongoing brewing projects or large gatherings.