DescriptionBlue Light Blocking Glasses can effectively block harmful blue light coming from phones, computer monitors, gaming, and other devices. Eliminates eye strain that causes headaches, aching eyes, and blurred vision.Features- Color: Black. - Material: Metal. - Size: About 14.50X14.20X2.50cm/5.70X5.58X0.98inch. - Ultra-lightweight and flexible metal material for durability and comfortable long-term wearing. - The frame wears very comfortable, and the lenses light transmittance is very good. - Casual frame design keeps you looks professional and fashionable while working or reading. - Alleviates visual fatigue and discomfort from long periods of web surfing, gaming and working. - Enjoy your digital time, NO worry about eye fatigue, blurred vision and headache.