For cookie sheets that can keep up with batch after batch of tasty treats, grab the Aluminized Steel Nonstick Cookie Sheet Set from Made By Design™. These corrosion-resistant cookie sheets will hold up through countless uses without rusting or developing dark spots, letting you get the most out of them. The aluminized steel also transfers heat quickly, helping to reduce your baking time. With the textured bottoms, these cookie sheets make it easy to remove your baked goods without bits getting left behind.
Incredibly difficult to clean off baked-on dark spots, and after a few months it all started to accumulate no matter how long I scrubbed. Bottom was bad too, which makes no sense since nothing is on the bottom. The sheet bends in the oven at 350 degrees. The surface with the bubbles seem to do more harm than good. Don't waste your money on this product.