Calphalon® Nonstick Square Cake Pans have interlocking nonstick layers to deliver high performance release. This nonstick bakeware releases up to 2 times better than Calphalon® Classic Bakeware. Even the stickiest baked goods can be removed effortlessly for beautiful results and easy cleanup. Heavy-gauge steel core heats evenly. Hard anodized aluminum. Use this pan to bake a square vanilla or chocolate cake, gingerbread or cornbread. Oven safe up to 500° F. Dishwasher safe. Lifetime warranty. Imported.