material on the mass?

[kubbah]

Hello, I would like to ask how to understand which material is applied on a mass...
That is to obtain the material I have applied previously to know which I have to change.
Thank you.

 

[gfrank]

control in family properties (of the mass used)

 

[kubbah]

Okay, but if I applied a material to a face?
How do I know what it is?

 

[gfrank]

... select that face, and always see in the properties (of the face). .