JAMIE OLIVER Round Springform Cake Tin, 9 Inches, Nonstick 9 Inch spring form cake tin with 3 Inch high walls and a 10 cup capacity perfect for angel food and cheese cakes Heavy-gauge 0.4mm carbon steel construction on sides and 0.8mm on bottom for even heat distribution Two layers of 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