There are similar to what you get when you have eye surgery, but they are smaller in height, thus far more attractive. They are also less expensive than some other brands. I do not expect them to last a lifetime, but they appear to be reasonably well made.
I had to send them back they were too large. I will be reordering. Lens is great.Sturdy, light weight, sexy, silver mirrored cat eye sunglasses! I get so many compliments on them! They fit My face nicely! Thanks Sojo.