Leak-free sealing ring: silicone gaskets and bottle lid rings create a tight seal to prevent spills and leaks in cups and bottles. Versatile sealing ring set: suitable for travel cups and bottles; can be used as a replacement gasket for bottles; round seal rings fit various lids. Wide compatibility: designed to fit most cups and brands, providing a snug, leak-proof seal; includes replacement lid seal gaskets and silicone jar gaskets seals. Reliable performance: delivers a dependable seal to stop leaks or spills during transport and daily use. Durable and easy to maintain: made of silicone for lasting use and simple cleaning. Use scenarios: - On the go: keep beverages secure in travel mugs and bottles during commutes or trips. - At the gym or outdoors: reliable seal for sports bottles during workouts and activities. - At home: replace worn lids on jars or containers to prevent leaks in the kitchen or pantry.