【BLUE LIGHT FILTER GLASSES】- Alleviates visual fatigue and discomfort from long periods of web surfing, gaming and working under fluorescent lights with UV400 protection and glare reduction. | 【REDUCE EYE STRAIN】- Extended exposure to blue light rays may cause fatigue and stress. Filtering out the HARMFUL Blue Light allows you to focus on your game or task on hand. | 【TRANSPARENT LENS】- Anti scratch, no color difference, bring you a real world. | 【LIGHTWEIGHT TR90 MATERIAL】- Super light and flexible TR90 nylon frame material for durability and comfortable long-term wearing. Casual frame design keeps you looking professional and stylish while working or playing video games. | 【30 DAYS MONEY BACK, LIFETIME WARRANTY】-100% risk free to try in case of any broken problem happening; just contact the seller without any hesitation to solve the problem until your satisfaction.