Safe at the temperature between -40 and 230 Degrees Celsius, suitable for microwave, freezer and dishwasher. BPA free. Each cup measures 8cm in diameter and 3cm deep Featured with food-grade silicone, will not produce toxic and hazardous substances during the use. Temperature Resistance, The doughnut pan is safe at the temperature between -40 and 230 Degrees Celsius, suitable for microwave, freezer and dishwasher. The silicone trays are non-stick, dough-type won't get stuck in the cavities, and even if they will, you could use some warm water to clean easily. The flexible silicone makes the donuts easy to be removed as you can just pop the bottom of the mold up and slide the donut off the extended centre. Apart from donuts, you can use the moulds to create anything you like, from Cakesicles , ice rings and chocolate cakes to bagels, muffins, frozen delights, cupcakes or anything else you want.