Reading Glasses by Eyekepper: 4 Pack Quality Spring Hings Retro Round +4.0

PRODUCTS DIMENSION-Frame material: Metal, Lens width: 1 7/8"(47mm), Frame width: 5 1/8"(130mm), Lens height: 1 11/16"(43mm), Frame height: 1 3/4" (45mm), Bridge (DBL): 5/8"(16mm), Temple length: 5 1/2"(140mm), Spring hinge: Yes, Lenses: Aspheric, Head size: Narrow to Medium EYEKEPPER SPRING HINGE READING GLASSES-the pupil distance(PD) is 59-63mm,the deviation for pupil distance(PD) less than 2mm,the deviation for strength less than 0.02,the deviation for lenses's horizontal line less than 1mm EYEKEPPER RETRO ROUND READING GLASSES-4-pair at 1 low price, Each set is just for one strength, these are not mixed strength.We paid close attention to the "Screws Fell Out", "Springs Fell Off", "Arms Snapped Off" etc and find the correct way to improved these issue for this style. QUALITY METAL FRAME -FDA Registered Reading Glasses and Eyewear,Accord with ANSI Z80.3-2010,Accord with BS EN ISO 12312-1:2013 and EN14139:2010,Accord with AS/NZS 1067:2009,Top quality metal frame,lenses and have spring-loaded hinges In case any broken problem happens, contact the seller of Eyekepper without hesitation to solve the problem until satisfaction. Eyekepper provides lifetime after sale service for all Eyekepper reading glasses.