With one 4 litre container and one 1.5 litre container, this 2 piece Cook and Freeze Rectangular Set is made from high quality borosilicate glass, which ensures its thermal shock resistant as well as oven safe up to 300C when used without the lid. The lid on each of these containers means that food can be stored in the fridge and freezer, and makes them suitable for reheating food in the microwave. For even more convenience, This two piece Cook and Freeze Set is suitable for cleaning in the dishwasher and is made from scratch resistant, hygienic material.