Preserve the bounty of the season with HIC's Silicone Canning Rings. Created from European-grade silicone for maximum strength and durability, these flexible and non-stick gaskets fit most standard-sized canning jars and lids to create airtight, liquid-tight food storage containers. Each gasket is heat safe, making them ideal for all canning processes. Enjoy your favorite homemade foods all year long with the Amici 4-pack!