HIC Brands that Cook Silikomart Silicone Coverflex Lids, Set of 3 Set of 3 flexible lids Made of 100-percent food-grade silicone Use with all kitchen containers, dishes and pots of different materials, including stainless steel, chinaware, plastic and ceramics Heat safe up to 450-degrees F Set of 3 includes 4-1/2-inch size, 6-1/2-inch size and an 8-1/4-inch size