Standard Frame : The Rx-able frame material is plastic. With Spring hinge and aspheric lenses, it fits medium to wider head size. The color of the BB40 lenses is lighter than the previous yellow lenses, result in avoiding color distortion to a greater extent, with 40% blue light blocking for wavelength 395nm-500nm. The lenses do not block blue color of online test for color filtering properties

Anti Blue Ray Glasses : Our anti blue ray glasses can obstruct injurious blue ray, as per test via the spectrometer (the performance of blue light blocking) it blocks 29% within 500nm, 32% within 490nm, 33% within 480nm, 35% within 470nm, 36% within 460nm, 37% within 450nm, 39% within 440nm, 51% within 430nm, 93% within 420nm and more than 99% within 400nm-410nm

Comfortable Eyewear : The frame is comfortable to wear and the lenses light transmittance is very good. Besides, casual frame design keeps you looks professional and fashionable while working or reading. Suitable for different face types. Perfect gift for your friends, parents, grandparents and relatives. Provides 100% UV protection. Almost no color distortion

Product Dimensions : Lens width about 1 7/8 inches (48mm), Frame width about 5 1/8 inches (130mm), Lens height about 1 7/16 inches (37mm), Frame height about 1 5/8 inches (41mm), Bridge (DBL) about 5/8 inch (16mm), Temple length about 5 5/16 inches (135mm)

Computer Gaming Glasses : Superior blue light blocking computer glasses that will reduce eye strain when working on a computer, tablet, phone or television. FDA registered gamer glasses and computer eyewear, accord with ANSI Z80.3-2010, accord with BS EN ISO 12312-1:2013 and EN14139:2010, accord with AS/NZS 1067:2009