Come and see our amazing products. Protect Your Eyes - Exposure to blue light over time can lead to visual fatigue. This anti-blue light glasses can effectively block harmful blue light AND UV400,Relieve Fatigue and Headache - Long hours spent on computers and mobile phones frequently causes fatigue, dizziness, even migraine. Anti-blue light glasses can relieve these symptoms when you enjoy the fun of smart devices,Sleep Better - Blue light can temporarily cause sleepless, Compromise sleep quality. The glasses improve sleep quality by blocking harmful blue light,Soft and Comfortable Material,100% guarantee for quality. The price includes the shipping cost to ca, QTY for 2000 pcs and over by ocean. Pls confirm with us about the packing info, stock color and exact production time before placing your order.