ALL SILICONE MATERIAL:
Not like our previous products, this containers are made from 100% Food Grade Silicone,which is BPA Free, non-toxic, soft and safe.
Not only you can put them in refrigerator, you can put the whole lunch box in microwave or baking oven.
Heat Resistant:
Withstand temperature -40 to +230°C(-40 to 446 F), need to open the air hole on the lid before heating.