This is the worst product that i have ever bought it on Ali Expres ! The frame looks not cheap but like a joke ,like a device for playing ,like flexible snare or wire ! I can't believe that they produce such pathetic item ! Well ,when it came about the lenses ,those are good for nothing : the 2 small area -points for nearsight (for ex : 1,50) has a poor quality and clarity but the intermediar area and the farsight area those are worst ,you can see through them clearly....i will stick to the best bifocal which i bought hear from Nicholas brand. Anyway,i will put this item straight to the garbage ! th