The Monarch/Royal exact fit rectangular pizza stone occupies the space of 1 Monarch cooking grid segment to offer a large baking surface right on your grill. This reversible stone holds heat to quickly bake pizzas on the grill. The pizza stone fits between the rods on Regal stainless steel rod cooking grid or on top of the grilling surface of most grills. Exact Fit for Monarch and Royal gas grills and is compatible with all full size Broil King grills.