Eyekepper Spring Hinges Polycarbonate Lens Pilot Style BiFocal Reading Glasses Clear Lens +3.0[Product Information]- PRODUCTS DIMENSION-Frame material: metal，Lens width: 2 1/4" (54mm)，Frame width: 5 7/16" (138mm)，Lens height: 1 9/16" (40mm)，Frame height: 1 11/16" (42mm)，Hinge to hinge width: 5 5/16" (135mm)，Bridge (DBL): 15mm(5/8")，Temple length: 5 5/16" (135mm)，Spring hinge: Yes，Lenses: Aspheric，Head size: Narrow
- EYEKEPPER POLYCARBONATE LENS BIFOCAL 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 BIFOCAL GLASSES-included a microfiber cloth and hard zipper case.UV 400 Protection，Aviator style，look good on face. Spring-hinged temples， help glasses fit your face.Classic Styling and Outstanding Quality，Perfect For Protecting Your Eyes While Reading.Bifocal part is flat outside of the lens，not same the normal bifocal.
- 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，quality metal frame，lenses and have spring-loaded hinges
- LIFETIME BREAKAGE WARRANTY&30 DAY MONEY BACK GUARANTEE: 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. Customers can return and get refunded for any reason. You have no risk to try
