CHICHIC Non-Stick Reusable Silicone Baking Cups Cupcake Liners Muffin Cups, 6 Assorted Colors, Rectangle, Set of 12 Material - Chichic baking cups are made of 100% pure, professional quality food-grade, nonstick silicone. Meets US FDA and European LFGB Safety Standards. BPA, PVC and Phthalate FREE. Environmental friendly and reusable. Cup Size - Rectangular Size: 0.98 inch by 3.1 inch. Round Size: 1.4 inch by 2.8 inch Temperature Safe from -40  to +230  (-104  to 446 ). Microwave, Oven, Refrigerator, Freezer and Dishwasher Safe. Not just for cupcakes! Your kids will love our ultra-bright, multi-colored baking cups. Get creative and use them to make favorite candy recipes or healthy frozen treats. Ideal for muffins, cheesecakes, desserts, chocolate shell-lined desserts, chocolate coffee smoothies, baked oatmeal cups, mini breads and other baked goods, etc. Great for a birthday and holiday party!!