Instruct: Classify the given Amazon review into its appropriate rating category
Query: Not too practical

The reason for 3 stars is because I bake/cook a lot and that means a lot of measuring. The opening of the two smaller containers are not big enough to maneuver the 1 cup size so it is not practical for my purpose. Other than that they are ok. They are glass which preserves better the food and it seems to seal well.