1.The product made of high quality food grade silicone material. 2.Heat resistant temperature: -40 °C +230 °C. 3.It is non-toxic, odorless,non-stick ,non- rust or discolor, easy to use clean , suibable and not fragile. 4.which have FDA &ROHS approval; 5.the product suitable for oven, microwave ovens and freezer. 6.our factory is a professional manufacture of rubber products. you can get much information from our webside:www.xlyxs.com