These were actually pretty good. I was able to just line them up on a regular baking sheet pan and bake them. They also fit alot of batter so you can make fairly tall cupcakes. The cupcakes, once baked and decorated, were pretty easy to pop out. No need to grease them.These worked great for being able to make more than 12 cupcakes at a time. I used a 1/2 cup ice cream scoop full of batter and the came out perfect. No grease bleed through. Easy to tear off or eat cupcake with a fork. I am using these from now on!Love these!! Making a Big batch of cupcakes, I didn't have to use the pan, just put these on on a baking sheet and was able to bake all of them at the same time. Easy to eat the cup cake out of the cups as well.A great way to counter-act the sticky residue from the 3-2-1 mug cake recipes that take too much effort to remove from it's mug & clean the mug & it's tastier than digging out spoonfuls causing the rubbery, so called "cake" NOT looked forward to.The sturdy cups sit well unsupported in various sizes of bowls, cups, ramikins, etc. and removed from any kind of texture the microwave creates for the "cake" by simply peeling the paper off giving a muffin sized hand held, round(ish) tasty treat (even if it's rubbery.)It wasn’t actually greaseproof, the cupcakes still change the color of the cupcakes from the oilAs another reviewer said they are more dark gray than black. Faded black. Still cute.Super easy to make cupcakes in. You can slso use them for salsa cups, or to hold candy.Perfect for parties creating homemade treats