{Worry-free Shopping} 100% risk free to try any broken problem happens; just contact the seller without any hesitation to solve the problem until you are satisfied; You have no risk to try. {5 Pack of Blue Light Reading Glasses} Set of 5 blue light filter glasses means you'll have a pair handy wherever you are; Keep a pair in your favorite reading spots. {Resin Spring Hinge Frame} ultra-light and flexible resin frame material for durability and comfortable long-term wearing; Casual frame design keeps you looking professional and stylish while working or playing video games. {Explosion Proof Polycarbonate Lens} Reduce eyestrain, anti blue ray to a great extent; Enjoy your digital time, NO worry about eye fatigue, blurred vision and headache, let you have a better sleep. {Anti Blue Light Glasses} blue light blocker & UV400 Lenses, Alleviates visual fatigue and discomfort from browsing mobile phones, tablets, gaming and working under fluorescent lights with UVA/UVB protection and glare reduction.