Bake like a pro with Nordic Ware Naturals® 9" x 13" Rectangular Cake Pan. Made of pure aluminum, this commercial-quality pan ensures consistent, evenly browned results that will impress even professional pastry chefs. Say goodbye to rust and warping, and hello to perfectly baked treats every time. Product Details: Material: Aluminum Dimensions: 12.1" x 8.8" x 2.5" Weight: 1.3 lbs Lifetime Warranty Made In USA MPN: 46600 Use and Care: Max temperature: 500°F Hand wash with warm, soapy water Dishwasher use is not recommended as discoloration may occur but will not affect baking properties Scouring pads and metal utensils may scratch pan but will not affect baking performance Aluminum is reactive to acidic ingredients such as vinegar and tomato products. These foods may darken, pit or corrode the pan after prolonged use.