Crafted from pure aluminum for superior heat conductivity, the Naturals High Sided Sheetcake Pan delivers even heat distribution with no hot spots, producing perfectly browned sheet cakes, bars, and casseroles every time. Reinforced steel rims resist warping for lasting durability, making this pan a trusted workhorse for both professional and home bakers. Made in America and backed by a Lifetime Warranty, this naturally nonstick, uncoated aluminum pan is an indispensable classic. SKU: 44700 Interior Dimensions:L: 17.3 in.W: 12.4 in.H: 2 in. Material: Cast Aluminum Warranty: Lifetime Warranty Weight: 1.8 lbs Made In: America of domestic & imported materials Capacity: N/A Shape: Rectangle Color: Silver 1. Before initial use and after subsequent uses, hand wash with warm, soapy water.2. Dishwasher use is not advised, as discoloration will occur due to the cleaning agents used in automatic dishwasher detergent. This discoloration is merely cosmetic and will not affect baking properties or safety of the pan.3. Natural aluminum pans work well with parchment paper, silicone baking mats, and also traditional butter or shortening and flour methods. When roasting savory foods such as vegetables, butter or cooking oil work well.4. Nylon, wood, or silicone utensils are recommended. Metal utensils and scouring pads may scratch natural aluminum pans, but will not affect baking performance.