The Emile Henry Flame Top Pizza Stone in Red is made of all natural materials and is manufactured using Emile Henry's proprietary Flame technology. The Pizza Stone is made to withstand high oven temperatures. The glaze is micro-crazed contributes to a crispy well-baked crust, just like a pizza oven. If using the Pizza Stone on the stovetop, heat slowly and place on the largest burner. You can cut directly on the glazed pizza stone without damaging or scratching the surface. The Pizza Stone is easy to clean with soap and water and is dishwasher safe. Can be used in ovens, both conventional and convection; and can also be used under the broiler. Can also be used on grills: gas, charcoal and natural wood. Measures 14.5"?.