1. It is made of food-grade silicone, which is safer and more environmentally friendly than other products of the same type. 2. It has good flexibility, firmness and is not easy to change shape, easy to carry, easy to clean, dustproof and has good color fastness. 3. High temperature resistance (low temperature) characteristics, the highest hot resistance can reach 230 degrees (the lowest cold resistance can reach -40 degrees). 4. It has a longer life than other materials; oil resistance, corrosion resistance, resistance to microwave radiation.