1) resistant to high temperature,corrosion and scratch 2)safe in microwave oven,oven,dish washer and freezer 3)FDA,LFGB

1)material : borosilicate glass;   expansion coefficient : 3.8*10-7k

    resistant to heat up to 800celcius degrees,corrosion and scratch.

2) can be used in microwave oven ,oven ,dish washer and freezer.

3) have passed FDA, LFGB

4) can be used as a cover for the casserole as well as a bakeware.

5) we also have round glass lid for you to choose from .