The one thing they don't tell you is NOT to use cooking spray on these pans. It only "gums" up and is impossible to remove without damaging the pan. They are already nonstick so spray isn't needed. Use parchment paper to line the pan if you are concerned about sticking. The paper can lightly be sprayed. Nice to have the different sizes to choose from. I wish they made an entire set of baking pans.though you can buy them seperately.