This two-piece interlocking stone is an innovation in pizza-preparation technology. The thermal–shock-resistant cordierite stones lock together and seal air inside the hollow center. Heat circulates within the stone and is dispersed more evenly, effectively eliminating troublesome hot spots or overheating that can develop with other stones. The stone can withstand the intense heat of direct flame. Steady, even heat allows for easy cooking of pizzas, which can otherwise be challenging.