Come and see our amazing products. Doughnut molds are made of high-quality food grade silica gel. Easy to use: our silicone doughnut tray is perfect for your oven; Just place the pan on the cookie board, fill and bake. After cleaning, just fold the muffin into the storage space until the next use. The flexibility of the silicone allows the pan to fold without damage. It just needs to unfold to the initial shape. Microwave ovens, refrigerators and dishwashers are safe and can withstand 450 degrees Fahrenheit. Pls confirm with us about the packing info, stock color and exact production time before placing your order.