Crafted of Stoneware, featuring a reactive glaze. Due to the nature and hand-crafted qualities of reactive glaze, no two pieces are exactly alike and will exhibit unique variations in color and pattern. Product may slightly differ from image shown. The even-heating quality of stoneware allows this oversized baker to cook your lasagna quickly and thoroughly. And its good looks allow it to go straight from the oven to the table. Oven safe up to 350 degrees F for 4 hours. Microwave and dishwasher safe. Rectangular baker measures 13 inch x 9 inch x 2-3/4 inch and holds 118 ounces.