Observe lens first whether have scratch, impurity, bubble, stripe, check the outer package of Sunglasses Online, regular sunglass should be marked with product name, color, diameter, quality level, production factory name and trademark, mirror or hang the Clip On Sunglasses that make clear to prevent UVA, UVB and CE mark to ensure that cut off certain ultraviolet ray.
The lens should be smooth and transparent, the material of the lens is Mens Clip On Sunglasses and resin, and the best lens should use polarizing lens. It's made of a synthetic resin as light and delicate as a contact lens, and it's made of seven thin sheets, the outermost two of which are super-hard wear layers. The second and sixth layers are shatterproof reinforcement layers; The third, the fifth layer is ultraviolet filter layer, the most intermediate layer is a polarizing filter layer. Polarized lens can effectively filter reflected light and harmful ultraviolet rays, and has anti-shatter, anti-wear and other functions, is the most popular Magnetic Clip On Sunglasses.
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