Sassafras Rectangular Superstone Baking Stone with Rack and Cutter Set includes: rectangular baking brick, metal rack, 2-1/2 inch pizza cutter Brick made of natural stoneware fired at temperatures over 2000 degrees F Provides even heat distribution and moisture absorption; produces crustier dough Ideally suited to baking bread, pizza, or cookies; microwave- and convection-safe Measures 13 by 15 inches; hand wash with hot water; avoid soap