Mr. Bar-B-Q 15" Round Pizza / Baking Stone Kit... Turn your outdoor grill into a professional pizza oven. BONUS pizza cutter. Produce authentic brick oven pizza every time! Ceramic pizza stone retains high heat to make crispy crusty pizza. Can be used in the oven or on the grill. Unique design for convenient handling. Pizza stone dimension: 15 in x 15 in (38 cm x 38 cm)