Heritage Lock & Lock Airtight is a set of airtight containers. You can store food in them and they will keep things fresher than most other containers in my opinion. You can store leftovers, fruits, dry goods etc. This set has a 4oz. container, a container that holds about 1 1/2 cup and one that holds 2 1/2 cups.
They are simple to use. You just put the lid on and snap the hinges on them. These are stackable when empty to save storage room.
The containers are semitransparent so you can see whats in them when they are in the refrigerator. They are also safe to use in the freezer and microwave. They are safe in the dishwasher and are stain resistant.
They also come in other bigger sizes. They have some tall square shaped and round shaped ones to hold spaghetti or dry cereal. I kept potato salad in one of the taller ones and it stayed fresh. Love these!