You may need to adjust the size of some of the objects so the glasses would fit properly to your character.
All of the objects are grouped, but if you ungroup them the names are easy to understand so you won't have difficulty to select the desired object.
Although there are materials for mental ray you should use your materials to get the desired result for the particular scene and renderer.
-To open or close the handles simply select each and rotate.
The formats are:
- .max (2010,2011,2012)
- .fbx (for Unity etc.)
- .c4d (for Cinema 4D R12)
- .ma (for Maya)
- .blender (for Blender)
- .ztl (for ZBrush)
- .x (for Direct 3D)