Double-beam Polarized Variable Color Eyeglasses Non-degree Flat Glasses, Lens: Change Grey(Gray Silver Frame)

1. Light-sensitive color change, intelligent lens, indoor and outdoor sensing at any time
2. Solid hinge, smooth opening and closing, no ear pinching, not easy to rust
3. Anti-glare, safe driving
4. Comfortable silicone nosepiece, not easy to leave a red mark
5. Mirror leg luster metal elements, embellished pattern
6. Frame material: ABS, alloy
7. Refractive index: 1.50
8. Lens material: resin
9. Size: about 14.5 x 4.8cm
10. Weight: about 19g

A note on the speed and depth of discoloration: the depth of discoloration depends on the strength of ultraviolet light and the length of exposure. In weak ultraviolet weather, there will be discoloration effect is not obvious phenomenon, belongs to the normal situation, not the problem of glasses itself

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