Mold is silicone, eco-friendly, non-toxic, flexible, reusable. Non-stick, easy to separate, easy to clean, eco-friendly,low carbon, can be recycled, resistance to low temperature minus 40 degrees, high temperature 230 degrees, uniform heating and cooling. Simple and useful, healthfulness, resistant and adaptability Suitable for ornament decorations, jewelry, crafts making. Perfect for you and your family together.