This is a Kuromi lunch box, a Sanrio character. It's the case from a Kuromi lunch (ekiben, or train station bento). After eating the bento inside, it was washed and stored. The Kuromi paper that was on top of the omelet rice has been wiped with an alcohol wipe. The size is approximately 12cm (body) x 18cm (including ears) x 6cm (including lid). Not microwave safe. Please refrain from purchasing if you are sensitive to used items. Instant purchase is welcome!