Dough-Joe 15" x 18" Pizza & Baking Stone (5-piece set) MADE IN USA--These are the improved version of our original stones; These are dense, thick cordierite and are far more heat shock resistant. Their thickness allows them to contain a huge amount of heat FIVE-PIECE set of 6x9-inch tiles allows the flexibility of cooking small items like bread or a large pizza. If you're interested in our Pizza Steel, type Actual weight of 5 is about 15 pounds. WARNING--ONLY FALLS CULINARY SELLS THESE. ALL OTHERS ARE FAKE. Multiple stones are less prone to oven stress breakage than one large stone. They actually do not move around much unless you really strike them hard. DO NOT SEASON. Works perfectly on the grill and small grills benefit with the ability to mix the stones around