What this glasses can offer you is that it can effectively block most blue rays from electronic screen and reduce eye strain and other visual syndromes. Ultra light design enables this glasses to make you not feel heavy on your nose when wearing for a long time.It is constructed of resin material.The length of this frame width is 14.2cm and glasses leg is 14.1cm. The height of the frame is 4.5cm. For those who face computers, laptops or smartphones all day, this glasses is essential for the daily life.Item Name: GlassesMaterial: ResinFeatures: Eye Protection, Portable, Super LightweightSize Details:Frame Width: 14.2cm/5.59" (Approx.)Leg: 14.1cm/5.55" (Approx.)Frame Height: 4.5cm/1.77" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 Pair of Glasses