Kerecsen 2 Pack Reading Glasses Blue Light Blocking for Men Women Readers Spring Hinge

Each pair of computer glasses protects against harmful blue light from computers and other electronic devices. Blue light glasses are essential for those who spend a lot of time in front of a screen - especially at work. Our glasses function as excellent work glasses for computer use and block blue light to help your eyes feel less strained throughout the day. Specification: Width of the forehead frame :139mm/ 5.47' (approx.) Lens Height:38mm/ 1.49' (approx.) Lens Width : 57mm/2.24' (approx.) Leg Length :140mm/5.51' (approx.) Color:black, tortoiseshell,Clear. Please specify the frame color and lens strength when pay for this.Thanks! Classic-shaped frames, look good on any face. help glasses fit your face. Material : PC Frame, AC Lens,Head Size:Narrow to Medium . Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Size for manual measurement, there may be a 0 to 1 cm error, belongs to the normal phenomenon.