Manufacturer eyekepper EYEKEPPER. Spring-hinged temples help glasses fit to your face. Suitable for different face types. Perfect gift for your friends, parents, grandparents and relatives. Optical Performance : The pupil distance(PD) is 59-63mm, the deviation for pupil distance(PD) is less than 2mm, the deviation for strength is less than 0.02 and the deviation for lenses horizontal line is less than 1mm.
