【Classic Design & Environmentally Material】: Lightweight TR90 (BPA free) frame with anti-scratch PC lenses and durable metal hinges provide a comfortable fit. Durable, flexible and super light, suitable for long-term wearing; Stylish style, puts you in the spotlight all the time. | 【Blue Light Blocking Lenses】: Aosm glasses Blue light blocker with UV400 protection and than 99% of harmful light. Filter high levels of blue light from computers, phones, and TV screens, LED lights, maintain high-definition visual clarity, and reduce color distortion. | 【Relieve Eye Strain and Improve Sleep】: Reduce eye fatigue, headaches, and blurred vision caused by long-term exposure to blue light, protect your eyes from UV and glare, and may help promote melatonin production to maintain normal sleep patterns. | 【Stylish and Comfortable】: The classic and stylish design of these blue light blocking glasses, you can take them to school, work, or at home. The glasses are ergonomically designed to ensure comfort and suitable to wear for both men and women or teenager. | 【Satisfied Warranty Service】: We strive to provide high-quality products and satisfactory warranty. If you have any opinions on our products, please don't hesitate to contact us. We are open to your feedback and will make improvements based on your comments. Try it risk-free.