FEISEDY and Driving Sunglasses with Polarized Photochromic and UV400 for and Unisex and B1062 Men's Women's Color-Changing Lenses, Protection,

Lens height: 48mm [Photochromic Lenses] Photochromic lenses change color depending on the strength of UV rays in sunlight, so please note that the color and photochromic effect may be weaker in places with weak UV rays, such as an office, indoors, or on cloudy days. Please check the included UV light (blue light) and photochromic instructions for photochromic effects. [Note] Photochromic lenses change color depending on the strength of UV rays in sunlight, so please be aware that the color and photochromic effect may be weaker in places with weak UV rays, such as indoors, inside a building, or on cloudy days. Please check the photochromic effect using the included UV light lamp (blue light) and test card. High-quality polarized lenses: Multi-layered lenses minimize glare and reflections, providing a clear view. They also eliminate glare from the ocean and rivers, making them ideal for fishing. [Lightweight design] The frame is made of lightweight and flexible aluminum magnesium alloy + TR frame material, so it weighs only about 20g! [Very useful] With more functionality than ordinary sunglasses, they are perfect for a variety of outdoor activities, including driving, golf, fishing, running, cycling, mountain climbing, and baseball!