UV Protection,Reduce Eyestrain,Anti Blue Rays,Rectangular Computer Reading Glasses(Black,Amber Tinted Lenses) without Strength FEATURES Frame Material:Plastic Lens width: 2'(52mm) Frame width: 5 5/16'(135mm) Lens height: 1 1/4'(31mm) Frame height: 1 3/8'(35mm) Bridge (DBL): 1/2'(13mm) Temple length: 5 3/8'(137mm) Spring hinge: No Lenses: Aspheric Head size: Medium CARE To 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. Importedplastic frameplastic lensnon-polarizedLens width: 52 millimetersPROTECT YOUR EYES - Anti glare lens coating prevents insomnia and macular degeneration. Low blue light glasses provide computer eye strain relief & alleviate dry eyes when using your T.V., smartphone, tablet or PC gamer equipment.BLOCKING OVER 30% BLUE LIGHT - Blue light blocking technology naturally blocks out the recommended 30% of blue light rays: do not settle. Protect your eyes with the best blue light blocking glasses money can buy.HIGH TECHNOLOGY - Anti-scratch, anti-screen flicker, anti-glare, anti-fog coated; Electromagnetic ray, UVA & UVB blocking & fingerprint resistant.FDA REGISTERED - Fully registered with the Food and Drug administration to import Class I medical devices.100% RISK FREE PURCHASE - In case any broken problem happens, contact us without hesitation to solve the problem until satisfaction. We provide 2 YEARS WARRANTY and lifetime after sale service. Customers can return and get refunded for any reason. You have no risk to try. View more great items On Jun-12-18 at 20:46:27 PDT, seller added the following information: