These are fashion glasses with photochromic lenses that darken in sunlight. They also have blue light cut effect and can be used for both fashion and eye protection. I've also tested how the photochromic lenses change color, so please refer to the photos. The current Amazon price as of 10/16 is 2180 yen. Please note that price negotiations are not accepted in the comments section. Please use the "Price Reduction Request" button in the lower right corner of the product image. I will respond if possible. If I am unable to accommodate your request, I will gradually lower the price, so please "like" the item and check back regularly. If you have any questions about the product, please feel free to ask in the comments section.