Turn your kitchen or backyard into a pizzeria with the Mr. Pizza cordierite grill stone. This 15" stone is crafted with cordierite that provides excellent thermal shock resistance, eliminates hot spots, and draws out moisture from dough for a uniformly browned crust. This stone is not only for pizza: it can also be used to grill calzones, focaccia, baked goods and more. Grill stone is ready for use and does not need to be pre-seasoned or conditioned.