Simply place these baking cups directly on a cookie sheet and bake! Bake as many as you want in one batch. No messy clean up. Cups will fit in standard muffin tins. Greaseproof papers are easy to peel off and will not stick to bakeware. Oven, microwave and freezer safe. Package includes 32 standard baking cups along with a recipe for cupcakes. Made in the USA.