- Flexible and Durable Material: Crafted from high-quality silicone, these conical stoppers combine flexibility with exceptional hardness and strength. They resist breakage and withstand temperatures ranging from 200℃ to 300℃, making them reliable for various applications. - Variety of Sizes and Colors: This set includes 60 silicone stoppers in 8 different sizes and colors, providing a wide selection for your needs. Each stopper fits threads or openings with an inner diameter (ID) ranging from 1/16 inch to 5/8 inch, allowing you to easily find the perfect match for your containers. - Effective Sealing Solutions: Our silicone stoppers feature smooth surfaces and excellent insulation properties. They create a secure seal that prevents leaks of liquids, powders, and gases. Trust these stoppers to keep your containers airtight, preserving the integrity of their contents. - User-Friendly and Reusable: Designed for convenience, these silicone stoppers are easy to insert and remove thanks to their tapered shape. They are flexible and elastic, ensuring a hassle-free experience. Additionally, they are easy to clean and can be reused multiple times without staining, making them a practical choice for ongoing use. Use Scenarios: 1. Laboratory Applications: Perfect for sealing test tubes or beakers to prevent contamination and evaporation of samples. 2. Kitchen Storage: Ideal for closing jars and bottles, keeping food fresh and preventing spills during storage. 3. Craft Projects: Useful for sealing containers in art and craft projects, ensuring materials remain secure and intact. These silicone stoppers are a dependable choice for anyone needing effective sealing solutions in various settings.