Pyrex Glass Lid 1)Passed FDA,LFGB,EU84500EEC 2)Clear&Clean 3)Diameter:16,20,24,28CM 4)Die-Casting,high borosilicate glass The material is borosilciate glass, which is heat-resistant. There are four sizes of our round glass lid, Diameter:16CM, 20CM,24CM,28CM. And they are the best friend of Aluminum Die-Casting Cooking Pots. It is heat-resistant and up to 800 degree.