40 cm. The original insulated bakeware. It's perforated for perfect crusts! Perforated airflow. Even baking and browning. Guaranteed not to rust. Dishwasher safe. What is perforated bakeware? AirBake's specially designed perforated holes allow oven heat to penetrate the center of baked foods evenly, while the rounded pan edge prevents burning. The result is no more soggy pizza crusts or appetizers. In addition to pizzas, use this AirBake Baking Pan for perfect results with appetizers and bread sticks! Perforated pan allows warm air to move through for crispier crusts. Our Promise to You: AirBake Nonstick Bakeware is safe for use with metal utensils and will provide consistent results with even baking, no sticking and easy clean-up. AirBake Nonstick will never rust and is backed by a 10-year warranty. Cakes - No more uneven cakes! Cookies - No more burnt bottoms! Pizza - No more soggy crusts! Complete your AirBake collection with bakeware for every recipe. Made in China.