silicone mold material 100% food-grade silicone non-stick, and release easily, easy to clean, environmentally friendly, low-carbon, can be recycled; simple, health, natural antibacterial, high strength and high flexibility, corrosion resistance and adaptability; 4) difficult to damage, cracking, durable, Super resistant to extremes of temperature, temperature 230 degrees, hypothermia massive headwind; 5) safety, innocuity, no smell, the heat evenly.