SPECIFICATIONSRim: HalfRim Shape:SquareFrame Material:TR90Lens Material: Polycarbonate(What's PC Lens?)Feature: Nose Pads,UV400 ProtectionGender: Male/Man's glasses,Female/Woman's glassesFRAME SIZEFrame Width: 142 mmLens Width: 54 mmBridge: 18 mmTemple Length: 142 mmLens Height: 45 mm ENJOY YOUR DIGITAL TIMES with Cyxus Blue Light Blocking Glasses ANTI BLUE LIGHT - Cyxus blue light filter glasses can block the blue light effectively.BETTER SLEEP - Cyxus glasses can reduce eyestrain and headache, so you can enjoy a restful deeper sleep.REMOVE EYE STRAIN REDNESS - Cyxus blue light filter glasses can remove eye fatigue, redness, and dryness.STYLISH - The transparent PC lens and the acetate rectangle full-rim frame make you look so stylish.WHO NEED ANTI BLUE LIGHT GLASSES - Suitable for anyone suffering from eye strains due to long screen time, anyone who spends a long time staring at a screen like computer workers, designers, gamers, teachers, students, smartphone/pad readers, etc, or anyone who would like long-term eye protection from staring at a screen.. Reduce Eye StrainExcessive exposure to blue light could lead to digital eye fatigue/exhaustion and vision problems. With Cyxus glasses, no more dry/tired eyes. Anti eye strain when using a phone, tablet, laptop, TV, or computer. Great for anyone who would like long-term eye protection from staring at a screen. Headache ReliefBlue light can lead to headaches, migraine attacks, and other health issues. Cyxus blue blockers or blue-light filtering glasses will keep you healthy by blocking harmful blue light from digital screens while letting in all other beneficial light. Recommend for anyone who already has a migraine. Better SleepBlue light in the evening tricks the brain into thinking that it is daytime, which inhibits the production of melatonin and reduces both the quantity and quality of sleep. Fortunately, Cyxus blue light filter glasses can block blue light from entering your eyes and disrupting the natural sleep-wake cycle, improve your sleep. Cyxus blue lightfilter lens is made of aviation-grade PC material. Compared with those coating anti blue ray or adding anti-blue light pigment lens on the market, the Transparent blue light blocking substrate is our core technology, Cyxus blue light filter lenses are designed using the American HEV-Absorb substrate absorption technology. It can absorb high-energy blue lightfrom the computer, cell phone/mobile phone, tablet or iPad, also can provide UV400 protection, relieving eye fatigue, dry and headaches. Devoting to giving you a better sleep. Anti-eye strain and prevent eye redness. Thus, The lens can be made of a fully transparent base, without adding any pigment, while maintaining high light transmittance, the lens is less reflective, does not affect reading, and almost no color difference.