What the Revain product page says: Imported polycarbonate frame Polycarbonate lens Non-polarized coating for blue light blocking and UV protection Lens width: 2.05 in Lens height: 1.53 in Bridge: 0.75 Bracket: 5.31 inch 【Premium Quality】High quality plastic material, not easy to break, light weight, comfortable touch and durable. Effectively blocks 90% of blue light, whether it's a computer at work, a TV at home, or even your phone, most of us spend most of the day staring at screens. 【UV Protection】Excessive exposure to ultraviolet light is believed to cause cataracts, retinal damage and other eye problems. That's why we protect our lenses from UV rays 【Adjustable spring joint】Strong spring joint, suitable for different faces, the spring is easy to expand without deforming the lens, this ensures that they will not bend over time for large faces 【 4 Pairs of Different Colors】4 pairs of different color readers are important, choose for different outfits, and you can keep them in different rooms and offices. What I want to say: excellent visual quality. They are available in different colors and are perfect for everyday wear. Ideal for reading or working on the computer (but without the blue light filter). I have two at work and two at home.
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