Our products are Environmentally friendly, Microwave safe, high quality. 1. Made from a strong heat resisant plastic. 2. Can be reused and recycled. 3. These plastic microwave containers are the perfect solution for transporting both hot food and cold food and easy to take. 4. And be resistant to oily and fatty foods (Not that you should be consuming these types of foods! ) 5. These plastic lunch box also can be used in the microwave, dishwasher and freezer.