Flimsy
I purchased these reading glasses to replace the ones I had been buying previously from another vendor.  I am a carpenter and as such my reading glasses are on and off all day.  After wearing these for a couple of weeks, the screws started coming loose every other day, causing the glasses to literally fall apart.  Tightening the screws is very difficult as the head of the screw is similar to a carriage bolt, no slot.  On the positive side, the clarity of these glasses was better than my previous purchases.
Rating: 3 stars