Features: Blue Light Blocking: Help your kids protect their eyesight and promote healthy sleep habits with these blue light blocking glasses designed for daily use when using a computer Pad or smartphone. They are non-prescription and can cut harmful blue light reducing eyestrain and headaches. Material: Made of durable TR frames and PC lenses these glasses are both functional and fun. They come in a wide variety of styles that your kids will love. Sleep Better: Our kid's blue light blocking glasses can help improve sleep quality by blocking blue light and reducing eye strain which can affect children's circadian rhythms and lead to health issues. Eco-friendly and Anti-allergic: Our kid's blue light blocking glasses are designed with your child's comfort and health in mind. They are made with soft and environmentally friendly materials that are free from pollutants and irritation ensuring that your child's skin will not experience any allergic reactions. Customer Service: With customer satisfaction as our first priority we offer a satisfaction service for all of our merchandise. Specification: Frame Material: TR90 Lenes Material: PC Weight: 13.6g Notes: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. includes: 1*Glasses