It works.  It's kinda wonky looking.  But from a distance if people don't really pay attention and just pass you by.  They kind of pass as sunglasses to whatever they fit on to.

Pro(s):
-It's Polarized

Cons:
-It's small, I mean you can adjust it by gently pulling it apart to fit your glasses.  If it fits your glasses.
-Cheap material.
-It looks cheap, because it is cheap.