I have 2 sets of these so that I can bake double-layer cake layers at the same time. Here is what I *love* about Wilton pans...the sides are not graduated. This means that the sides of the cake bake perfectly verticle and not at an angle which makes even icing much easier. I have a lovely set of cake pans from another company that have angled sides which makes pans of the same diameter nest neatly, but makes for angled sides on my cakes. I haven't baked a cake in them since my first Wilton cake.