Anti-blue lens, blocking blue light of computer and mobile phone, bringing you a high-definition visual experience. Product name: Anti-blue reading glasses Product color: black Frame material: PC Lens material: PC Glasses function: anti-blue light Glasses features: foldable, anti-blue light Total width of mirror: 126mm Lens width: 55mm Frame height: 35mm Nose tip width: 19mm Total temple length: 138mm Magnification: +1.00, +1.50, +2.00, +2.50, +3.00, +3.50, +4.00. Choose the appropriate degree according to your age. Exquisite details: One-piece nose pads are made of suitable materials and are comfortable to wear; the hinge design is selected, which is sturdy and durable, and opens and closes smoothly; curved temples, high-quality temples, comfortable to wear without clamping the face. Not easily deformed. -note 1. We are measuring manually, there may be an error of 1-3mm. 2. Due to the problem of photo lighting, there may be some color difference, but please choose carefully within a reasonable range. 3. The delivery time is usually 15-25 days. If the product has not been received Please contact us within 30 days and we will try our best to solve it for you. 4. If you are not satisfied with the product, please contact us. If you are satisfied with our products, please remember to give us 5 stars.