Our "Super-Ceramic" baking stone is 13 inches in size and fits and works completely in the Big Green Egg" Medium Egg ". USA MADE! No Mexico, No China, No India ... gen-u-ine American Made Quality. This high temperature ceramic is so tough, it will stand up to approximately 2000 degrees F. So, no fret about it splitting from high heat. And yes, it "bakes" incredibly! ... turns your grill into a brick oven! With stone you'll discover how incredible you can bake on your grill or even in your house oven. Perfect for baking pizza, breads, rolls, Stromboli, cookies, calzone etc. Usage in combination with your platesetter, deflector plate or simply put it right on your grill grate and bake away!