Color: Black, Shape: Rectangular Cleaning cloth, spare nose pads, and screw driver included. WHY BLUE LIGHT BLOCKING GLASSES? Many of today’s electronic devices use LED back-light technology to help enhance screen brightness and clarity. These LEDs emit very strong blue light waves. Smart phones, computers, tablets and flat screen televisions are just among a few of the devices that use this technology. It’s well known that exposure to Blue light in the evening and long hours of screen time ruins your sleep and causes sore eyes and headaches. Blue light blocking glasses are a safe and comfortable sleep aid that prevents insomnia and other sleep disorders. Blue light from digital screens reaches deeper into the eye and its cumulative effect can cause damage to the retina and can cause the development of age-related macular degeneration and cataracts. WHAT’S THE DIFFERENTCES between BIOGLASS BLUE LIGHT BLOCKING GLASSES and OTHERS? -99% Anti-blue light(380nm~430nm) -100% Anti-UV and Anti-Radiation -Photochromic(color changing) lens – Automatically color changing (Yellow to Gray) -High technology frame Material: ULTEM – safe, flexible, light and durable frame.

-Dimensions: Lens Width 53mm(2.08”), Lens Height 38mm(1.49”), Bridge Width 18mm(0.70”), Arm Length 142mm(5.59”), and Total Width 145mm(5.70”). -Photochromic color change lens – Automatically color changing (Yellow 30% ~ Gray 80% in 30sec.) These lens darken on exposure to UV light and back to its normal clear yellow when UV is removed by walking indoors. -Great for Gamers, Workaholics, anyone who has to look at a computer screen all day, and late night TV addicts. -Protect your eye and health – Reduce eye strain and eye fatigue caused by high energy blue light emitted by electronic devices such as computers, tablets, and smartphones have shown to increase the risk of accumulated damage to the retina, cataracts, sleep disorders and macular degeneration. -Block blue light – Block 99% of harmful blue light, 380nm~430nm, which is more harmful among blue light wavelength 380nm~500nm. Better screen viewing and greater clarity. Anti-reflective and Anti-Glare lens, 100% UV Blocking/Radiation Blocking.