12”X20” non-stick coating aluminium pan with a smooth and a ribbed side. Smooth side is useful for fresh or defrosted pizza/focaccia cooking. Smooth side cooking tips: 450-500°F convection cooking with 60% closing cooking chamber. Ribbed side is useful for thin food as paillards, escalopes, finely cut vegetables, small fish. Ribbed side cooking tips: 460°F with 0% humidity.