Reducblu Reading Glasses with Spring Hinge for Women and Men - Classic Readers - Tortoise Plus4.00

DIMENSIONS: Frame Material: Plastic Overall Width: 135mm Temple Length: 138mm Lens Width: 51mm Lens Height: 32mm Frame height: 37mm Nose bridge width: 13mm Spring hinge: Yes Head size: Narrow to Medium.Rx-able frame ABOUT US Designer Inspired Frame Lightweight For Superior Comfort Excellent Durability and Craftsmanship Optically Correct and Spring-loaded Hinges 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 CARE To avoid damage, never contact with acid, and avoid using paper, towels, clothing, alcohol, household detergents or soaps to clean your reading glasses. While a few mild soaps don't harm lenses, today's extra strength soaps are powerful enough to slowly disintegrate lens coatings