6", Black Silicone, Rimmed Glass Lid, Tempered Glass With Stainless Steel Knob & Silicone Edge, Fits Most 6" Cooking Pans, The Silicone Trim Provides A Tight Fitting Seal & Protects Edges Of Your Cookware From Getting Chipped Or Nicked, Includes Vent On 2 Sides To Let Out Steam, Oven Safe To 450 Degrees Fahrenheit.