An Emile Henry rectangular ceramic pizza stone in burgundy (EH347618). Official specs are 18" x 14", 7.3 lb. BBQ ceramic, made in France. Sealed surface. Official page lists pizza in the oven or on a gas or charcoal grill, grilling vegetables or fish, and preparing, cooking, cutting, and serving on the stone. Oven, microwave, dishwasher. BBQ ceramic page lists heat to 500°C/930°F. 10-year guarantee for normal domestic use; not valid for commercial or foodservice. Specs from Emile Henry USA's rectangular pizza stone page.

The bigger stone if a 14.5" round does not cover dinner.