Blue Light Blocking Color Computer Ultra UV Fashion Stylish [KANASTAL] Glasses, Dimmable, Changing, Glasses, TR90, Lightweight, 16g, UV400,

Photochromic lenses: Lenses change color depending on the strength of ultraviolet rays from sunlight. They are light gray outdoors and almost transparent indoors, reducing glare. They can be used in a variety of lighting environments, both indoors and outdoors, and do not require replacement of glasses. (Please note that blue light cut lenses are usually slightly yellowish. Please note that the color change and photochromic effect will be weaker in environments with weak ultraviolet rays, such as inside a company, indoors, on a cloudy day, or while driving.) Blue light cut, UV400: Equipped with UV400 lenses, it blocks 99% of UV rays. Protects your eyes from harmful UV rays. Reduces harmful blue light from computers and smartphones. Reduces eye fatigue even with long-term use, providing double protection for your eyes. Can be used as PC glasses indoors and as sunglasses outdoors, serving two purposes in one. 16g Ultra-lightweight design: The frame is made of highly elastic TR material, which is lightweight, durable, and flexible, making it suitable for a variety of face shapes. It does not feel oppressive even when worn for a long time, making it ideal for use in a variety of situations such as work, study, and outdoor activities. Stylish rectangular frame: The classic rectangular design is simple and sophisticated, and fits any face shape. It can be easily coordinated with a variety of scenes, such as daily commuting, business meetings, and casual gatherings, and enhances the wearer's sense of fashion. It is also a perfect gift for Father's Day, Mother's Day, birthdays and anniversaries. Size: Lens width: 52 mm (the width from the left edge to the right edge of the lens does not include the frame); Lens height: 33 mm (the height from the top to the bottom of the lens does not include the frame); Overall width: 140 mm (measured from left to right at the widest part of the glasses frame); Bridge width: 18 mm; Arm length: 142 mm; Weight: about 16g; Note: Due to artificial measurement, there may be 2-3mm error.