Anti Blue Light Glasses-Blue Light Lens can Block and Filter Harmful Blue Ray,Effectively Reduce Eye Strain and Migraine Coming From Smart Screens (computer,cellphone,TV and etc.)when Gaming and Working. | 3 Pairs One Set-Three Different Colors and Medium Size for Most People.Black,Demi Brown,Transparent. | High Quality TR Material - Ultra Light and Durable Frame with Polycarbonate Lenses for Durability and Comfortable Long-term Wearing. | Medium Size - Suitable for Most People,But can not Fit Very Big or Small Face.Product Dimension-Lens Width: 50mm(1.97inches), Lens Height: 43mm(1.69inches), Temple Length: 140mm(5.51inches), Nose Bridge: 18mm(0.9inches), Frame Width:138mm(5.04inches). | No Risk to Try.If You Have Any Questions,Please Feel Free to Contact Us.We Will Solve The Problem Until You are Satisfied.