Russian Expression Что за…?

Did you know that, in colloquial speech, the expression Что за + noun in Nominative case is widely used? It means “what sort of”, “what kind of”, “what type of”.

For example,

Мама, что это за машина? Mom, what car model is that?

Что это за книга, я не вижу? What (kind of) book is that? I can’t see it.