Protect Your Eyes – JIM HALO oversized retro square computer blue light blocking glasses can effectively block harmful UV rays when you watch TV, look at computer, tablet, smartphone or other electronic devices. Blue Light Filter Lenses – JIM HALO large chunky frame glasses with anti blue light lenses can reduce eyestrain, prevent eye dry and eye fatigue, block blue light and anti glare. Sleep Better - Wearing JIM HALO oversized thick frame blue light filter glasses will improve your sleep, help you sleep better and have good night. Dimension: Lens width: 53mm/2.08inch, Lens Height: 48mm/1.89inch, Bridge width: 19mm/0.75inch, Arm length: 150mm/5.9inch. CHOOSE JIM HALO-Rest assured to buy,Contact us with any questions regarding our products and we’ll be happy to help.