The box is made of high heat-resistant glass, which is stable in material, does not decompose harmful substances, does not pollute the food, and is durable..
The heat-resistant high and low temperatures(-40℉~752°F), so the box can easily face the test of microwave, oven, and refrigerator.
Leakproof and durable design: The elastic sealing ring and the snap cover can be used well together to form an airtight and leakproof seal.