it will be change to grey color in the sunshine within 10 minutes

The screwless hinges guarantee the hinge's firmness

COMPUTER READING GLASSES - Blue light blocking computer reading glasses can reduce eyestrain when you are working on computer

Lens width about 1 7/8 inches (47mm)

Stylish Chic Oval Blue Light Computer Reading Glasses 1-CG071 Color:Blue it will be change toPROTECT YOUR EYES Anti glare lens coating prevents insomnia and macular degeneration. Low blue light glasses provide computer eye strain relief & alleviate dry eyes & relief headache 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