- Flexible and Durable: Crafted from high-quality silicone, these tapered stoppers offer a perfect balance of flexibility and strength. Resistant to breaking, they maintain their integrity under temperatures ranging from 200°C to 300°C, ensuring long-lasting performance. - Multiple Sizes and Colors: This set includes 60 silicone stoppers in 8 distinct sizes and colors, catering to a wide range of needs. Compatible with both threaded and non-threaded containers, they fit inner diameters (ID) from 1/16" to 5/8". You can easily select the ideal size and color for your specific application. - Secure Sealing: Our silicone stoppers provide exceptional insulation and sealing capabilities. They create a reliable barrier, effectively preventing the leakage of liquids, powders, and gases. Trust these stoppers to keep your containers sealed from air exposure, preserving the quality of your contents. - Easy to Use and Reusable: The tapered design allows for effortless insertion and removal. Their flexible and elastic nature ensures hassle-free handling. These stoppers are also easy to clean and can be reused numerous times without staining, making them a practical solution for your storage needs. - Practical Applications: Ideal for laboratory use, food storage, or home organization, these silicone stoppers can securely seal beakers, jars, and bottles, keeping their contents safe and fresh. Whether you’re working on experiments or simply storing leftovers, these stoppers provide the reliability you need.