Its very hard to assign stars to this product.  I live in an area where eye protection from the sun is a must.
I love that the lens are dark, not the kind slight change of color, so great for high sun activities like chilling at the beach, fishing etc, the mirrored side is fantastic, probably if they were a big bigger you could do your makeup or whatever with them. They sit comfortably on my face, not too big or too small, doesn't slide on or chafe my nose when sweaty.
Comes with a nice little pouch to keep safe from scratches when you not wearing them.
All in all a potential I-can't-believe-its-so-cheap bargain.

However dropped them the other day and one of the lens popped out - they're held in place by the metal frame at the top and a piece of plastic 'wire' at the bottom - and in trying to put the lens back the other one popped out.  So yeah.  Cheap and fantastic as they are I wouldn't recommend them if you are like a klutz, but if you are going to get them just remember that they are cheap for a reason.