Note: 1.There is 2-3% difference according to manual measurement. Please check the size carefully before you buy the item. 2.Please note that slight color difference should be acceptable due to the light and screen. 3.( Unit Conversion:1 inch = 2.54 cm,1 cm = 0.39 inch ). Glasses Size Data: The total frame width(mm):138 Lens width(mm):52 Lens height(mm)49 Width of the nose(mm):17 Length of mirror leg(mm)142