Anti-Glare Day Night Vision Glasses Men Women Polarized Driving Sun Glasses Square Aluminum Photochromic Sunglasses UV400
£8.61
The intelligent color-changing feature provides good light-transmittance and clear vision.
Photochromic principle: under ultraviolet light or the sun, the radiation will cause a chemical reaction that changes the lenses uniformly. (Photochromic lenses cannot change color under normal light, and must be exposed to sunlight to change color)
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