Large family size Glass Container with airtight locking lids. Airtight - Leak Proof multipurpose, can be used as bakeware or for storage: The perfect solution to bake for lunch or cook meat / chicken for dinner and store them as well. Silicone sealed BPA-Free plastic lid (plastic lids are not microwave or oven safe). Leak Proof Storage - container is easily sealed, air tight and spill proof. Rectangle glass food containers- keep leftovers fresh, goes straight from the refrigerator to the microwave or oven to the table. Food can be cooked directly in the container using microwave or oven. Less dead space while storing in refrigerator due to rectangle shape. Borosilicate Glass For Versatile Use - Reusable Refrigerator, Freezer, Microwave and Dishwasher Safe (Top Shelf Of Dishwasher Recommended), Heat Resistant - 40 degrees Centigrade to 520 degrees Centigrade. NOTE: plastic lid is not oven and microwave safe.