These bi-focal sunglasses are great!  The fit is very good, they cover all around my eyes, they are comfortable and I can now read small print again while wearing sunglasses!  Is the quality as good as my beloved Ray Ban sunglasses? No. These cost 1/4th what I paid for my Ray Bans!  I'm not sure how well plastic lenses will hold up, however I believe if I take care of them, they will last for years to come.  These also come with a nice hard shell carrying case, which is handy to protect the sunglasses.  Highly recommend these for an inexpensive bifocal set of sunglasses.