JAMIE OLIVER Square Cake Tin, 8 Inches, Nonstick 8 Inch square cake pan with 3 Inch high walls for baking deep dishes Heavy-gauge 0.6mm carbon steel construction for even heat distribution Durable nonstick Quantum II coating on interior and Xylan coating on exterior keeps food from sticking Thick rolled edges prevent warping even at high temperatures up to 475 degrees F 25 Year Jamie Oliver Guarantee - Hand wash Recommended