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The containers are actually enamelled tins although at a glance they look like they are made from porcelain. They are not labelled specifically but they would make perfect containers for beverages. If you really need them to be labelled you could easily attach some self-adhesive kitchen labels in the space between the dots.
The design has the colours of yellow, red, blue and green in them so if you're trying to match them to your kitchen there is a good chance these would fit nicely with many different kitchen colours schemes.
Even though the lids don't have a handle or knob on them, most users say they are very easily opened.