Premium Food Grade Silicone: Crafted from food grade silicone, these gaskets ensure safe and odorless sealing, making them perfect for preserving freshness in your glass food storage containers. Reliable, they provide peace of mind with every use. Long-Lasting and Reusable: With excellent elasticity and wear resistance, these gaskets provide long-lasting performance, are easy to clean, and can be reused multiple times without cracking or breaking, providing excellent and sustainability. Flexible and Easy to Install: The 2-meter length silicone rubber ring provides flexibility and can be easily cut to fit various container lids, providing a customizable sealing solution that's quick and hassle-free to replace or upgrade your old gaskets. Heat and Cold Resistant: Resistant to a wide temperature range, these silicone sealing rings withstand both freezer and microwave use, making them versatile for everyday kitchen needs without deformation or loss of sealing capability. Superior Airtight Seal: Designed to create a tight, leak-proof barrier, these silicone gaskets maintain food freshness by preventing air and moistures from entering containers, extending the shelf life of your stored food.