15.5 Inch medium tray, 1.5 Inch deep. Oven & stovetop safe, hardened enamel surface, dishwasher safe, non-toxic. This enamelware is made of carbon steel coated with a porcelain enamel and trimmed in stainless steel. There will be variations in the shading of colors and pattern formations which are the results of the hand-dipped process.