This kind of glasses is suitable for children aged 7-16 years old to wear. The anti-blue ray anti-radiation technology has been certified by several international authoritative organizations. The frame is made of TR90, and the lens is imported PC lens. Lens width is 49mm, nose bridge is 15mm, total width is 127mm, lens height is 34mm, lens leg length is 136mm, color has blue, pink, red and black.