Feature:100% and high qualityFeatures:nsforms regular glaes into sunglaes.Great for those who already have a pair of prescription glaes and do not want to spend more for a pair of prescription sunglaes!Easy to clip on glaes (not suitable for rimle glaes)Polarized es will be helpful for your safe driving or any other activities under the sunHow to choose the right size:1.With a ruler to measure the length and width of you glaes2.Select the clips should be larger than the size of the measured3.If you like a larger Polarized you can also choose larger sizeNote:1 inch=2.5cmSells the commodity take the material object as the standard1.Due to the hand measurement, there have size error about 1-2cm2.Please be reminded that due to lighting effects and monitor's brightne/const settings etc, the color tone of the photo and the actual item could be slightly different