product configuration:
Photochromic 1 lens glasses*1
Glasses cloth+bag+Glasses case
Features:
1. The photochromic lens is transparent in the absence of ultraviolet rays indoors, and the lens color gradually turns black after being exposed to ultraviolet rays outdoors, and the stronger the ultraviolet rays, the darker the lens color.
2.The frame is made of TR90 material, which is tough and not easy to deform.
