Blue Blocker Driving Sport Sunglasses Amber Tinted Lens plastic frame plastic lens non-polarized Lens width: 81 Lens height: 43 Unisex Sport Driving Sunglasses Blue Blocker Lenses keep out the glare of bright light; Perfect for driving at night Shatter Resistant Poly-Carbonate Frames Great for use while playing sports or working out in the sun Use these at night when looking at a Computer Screen or Phone to keep the intense light from the screen from keeping you up during the night; Light exposure close to bedtime has been shown to interrupt proper wake-sleep hormone cycles