I give them 2 stars because for their cost, the quality of their lenses is very good. Clear lenses, without distortions (aspherical), they don't tire me at all during prolonged use, even though I have astigmatism in one eye. The additional sun attachment is equally high-quality and effective, securely held in place by magnets, and has proven to be extremely useful, especially while driving. On the other hand, the frame broke without any serious reason within two months. I only had them for the car, in a special case, meaning they were not squeezed inside bags, etc. Despite this, at some point when I went to wear them, I felt them loose and discovered the broken frame.

I have bought 3 so far and all three are helpful but of very poor quality, very very fragile in the areas where I have taken a photo with the slightest force they broke and the worst part is that the magnets that hold the clip come off