Chicago Metallic Commercial II Non-Stick Jelly Roll Pan, 17-1/2 by 12-1/2 Inch Ideal for like one-sheet dinners, jelly rolls, bars, and cookies but can also be used to make one-sheet pan meals, roast vegetables, reheat leftovers Made from heavy-weight aluminized steel for superior heat conduction and even baking and features a iamond-quality, non-stick dual-coating Strong and durable, long-lasting construction featuring a wire rod reinforced rim to prevent warping Measures 17.5-inch by 12.5-inch by 1-inch; inside measures 16.5-inch by 11.5-inch Dishwasher safe, however hand-washing is recommended to extend product life