Material: Food-grade silicone. Size: Christmas Tree Tray - 25cm 17cm 2.6cm / 9.8in 6.7in 1in. Good for Heat Resistant Temperature from -40 to +230 Centigrade (-40 to 446 F). The christmas molds silicone can be used in the oven for baking and in the microwave for reheating Great flexibility:Christmas Trees Candy molds won't crack or break like classic hard plastic mold,durability and long lasting.