Miren Silicone Baking Cups are made of high quality, 100% food grade silicone, BPA Free, FDA Approved, non-toxic, eco friendly, flexible, reusable and durable., Miren Silicone Baking Cups can withstand temperatures from -40 degrees Fahrenheit to 446 degrees Fahrenheit.; Oven, Microwave, Freezer and Dishwasher safe. Clean them will be in a blink of an eye. Easy release and non stick silicone will make your baking become more happier. With a nice box, storage become very easy.; 8 vibrant colours will makes baking even more fun. Best gift for both adults and kids.; Each cup Dimensions: about 3 inch (7.5 cm) top diameter * 1.8 inch (4.5 cm) bottom diameter * 1.4 inch (3.5 cm) tall. Volume: about 2.75 ounces.