Make treats worthy of celebrating with this Wilton Air-Insulated Cookie Sheet Set. Great for baking big cookie batches, roasting veggies, heating up appetizers and more, this cookie sheet set is a must-have for bakers and decorators. Featuring an air-insulated layer, these cookie sheets prevent your baked goods from burning. A pocket of air insulates and separates two sheets of high quality non-stick aluminized steel. The bottom sheet protects the top sheet from the direct, intense heat of the lower part of the oven, helping to distribute heat evenly for better baking. Use them with your favorite cookie mix or recipe or bake a big batch of snacks to feed a crowd! Set includes two pans: 12 x 14 in. and 14 x 16 in.