1. The baking cups are made of food grade silicone, they are flexible. The muffin donut pans are non-stick, they keep their shape well while baking and whatever you bake takes on the details of the mold. Cooled items pop out easily without cracking or breaking apart. 2. Temperature from -40 to +446F/ (-40 to +230℃), Oven-Microwave-Freezer-Dishwasher Safe. Because of the large temperature range they can endure these little molds have lots of uses from baking to zing. 3. These silicone molds can be used for so many different desserts. Place them on a cookie or baking sheet, you can use them to make individual donuts,muffins, snack cakes, cupcakes, custards, cheese spreads and breakfast items. Also good for small frozen treats , candies, ice cubes, mousse or soap molds too. You can make a bunch of jello molds. 4. These muffin cake pans outside matte finishing, inside bright finishing, it is easy to clean and separate with cake. Great for occasions of birthday party, holiday party, shower, or wedding, they will be a big hit with your guests. After using, soak baking cups in warm soapy water. Any leftover crumbs will turn into mush and can easily be washed out with a soft cloth.