FEATURESFrame Material: PlasticDiopter available: +0.0/+0.5/+0.75/+1.0/+1.25/+1.5/+1.75/+2.0/+2.25/+2.5/+3.0Lens width: 2 1/16"(53mm)Frame width: 5 1/2"(140mm)Lens height: 1 5/16"(33mm)Frame height: 1 7/16"(37mm)Bridge(DBL): 1/2"(13mm)Temple length: 5 5/16"(135mm)Spring hinge: YesLenses: AsphericHead size: MediumCARETo avoid damage, never clean your eyeglasses with paper towels or clothing or alcohol, and also avoid using household detergents or soaps. While a few mild soaps don't harm lenses, today's extra strength soaps are powerful enough to slowly disintegrate lens coatings.KINDLY NOTICESize for manual measurement, there may be a 0 to 1 cm error, belongs to the normal phenomenon.Please ensure that the FRAME SIZE is fit for your head before your pay.Please specify the FRAME COLOR and LENS STRENGTH when pay for this.Please choose [0.0x] if you donnot need reading glasses or magnification strength but JUST BLUE LIGHT PROTECTION.r>Please specify the frame color and lens strength when pay for this. Thanks!