Product information: Frame material :PE Lens function: radiation resistance Frame color: Black [Light titanium feather reading glasses], silver [light titanium feather reading glasses], gold [light titanium feather reading glasses] Lenses: Presbyopia 100 degrees, presbyopia 150 degrees, presbyopia 200 degrees, presbyopia 250 degrees, presbyopia 300 degrees, presbyopia 350 degrees, presbyopia 400 degrees Glasses style: Oval frame Frame material: titanium alloy