Each side of these compact containers is a good size for a handful or scoopful of a snack or topping.
The containers arrive in a very plain package. I'm thinking they arrive clean and ready to use, but I'm not positive. The markings on the containers and lids indicate they are food safe, recyclable, and %235 plastic. There are no symbols indicating they are okay or not okay for dishwashers or microwaves.
They feel like nice takeout quality -- sturdy but not extremely durable, probably disposable, and maybe reusable a few times.
The lids click into place securely, and I'd feel confident enough to have these filled in a lunch box or bag without being worried they would open.