**Product Specifications**
**Safety and Health Protection**: Eliminate glare, UV400 protection against ultraviolet rays, providing a softer and clearer vision for a safe and comfortable experience.
**Frame Design**: Edge rebound design to prevent pollen and dust. Anti-blue light for a clear view.
**Blue Light Blocking**: Effectively blocks harmful blue light, protecting eyes from both harmful and beneficial light.
**Blue Light Test Card**: Demonstrates the effectiveness of blue light blocking by showing color changes when exposed to blue light.
**Comfortable Design**: Flexible and comfortable nose support, suitable for various face shapes. Firm hinge for a secure fit.
**Material**: Textured metal frame for a premium quality feel.
**Product Information**: Lens height 35mm, bridge width 17mm, lens width 51mm, temple length 138mm, total width 132mm.
**Type**: Reading glasses, **Model**: YIDUN, **Weight**: Approximately 13.8g, **Frame**: Metal, **Gender**: Unisex, **Face Shape**: Fits most face shapes.
**Color Options**: Black frame, Silver frame.
**Certificates**: Certificate No. 4801140, Certificate No. 4728124, Utility Model Patent Certificate for Optical Blue Light and Radiation Protection Glasses, Utility Model Patent Certificate for UV Coating Sunglasses, **Inventor**: Meirongsheng, **Patent No.**: ZL.201520556719.3, ZL201520556646.8, **Application Date**: July 29, 2015, **Patentee**: Nanchang YIDUN Technology Co., Ltd., **Announcement Date**: December 9, 2015, **Authorization Date**: January 20, 2016.
**Patent Information**: The patent is valid for 10 years from the announcement date. Patentee must pay annual fees to maintain the patent.
**Director**: Shen Changyu, **Patent No.**: ZL201520556719.3, ZL201520556646.8, Optical Blue Light and Radiation Protection Glasses, UV Coating Sunglasses.
