Protect Your Eyes -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,let you have a better sleep Blue Blocker Glasses -1 PCS mens/womens reading glasses is 23g/0.05lb.Oversize lightweight computer glasses for men/women fit most face. Resin aspherical lens, no distortion. Flexible Spring Hinge - Whether your face is oversized, petite or medium, it can easily solve your problem.The arbitrarily swingable spring leg design also reduces the squeezing of the glasses to the head.Good protection for your eyes and head! Package Includes -1 Blue light blcking glasses+ 1 zipper case + 1 microfiber cleaning cloth. Customer service -100% Satisfaction Guaranteed.We are confident that our product will meet or exceed your expectations. If you are not satisfied with the product, however, we readily offer a 90-Day Hassle-Free Money Back Guarantee. Customer satisfaction is our priority.