【THREE LEVELS OF VISION】：Progressive multifocus glasses for all your need. Top part is half-power magnification for walking, shopping. The middle part is slightly reduced power magnification for working on computer, watching TV, etc. The bottom part of the lens is full-power,used for nearly distance reading. It means that you can wear the glasses anytime and anywhere. | 【BLUE LIGHT BLOCK】：Quality anti blue light /UV rays lenses,not only it can block harmful blue light effectively, but also defend against UV light which can be equally damaging.After using our blue light progressive reading glasses for a while, you will notice the difference. It can reduce the visual eye fatigue and discomfort caused by using a computer or mobile phone.Relieve headaches and sleep comfortably. | 【BLUE LIGHT BLOCK】：Quality anti blue light /UV rays lenses,not only it can block harmful blue light effectively, but also defend against UV light which can be equally damaging.After using our blue light progressive reading glasses for a while, you will notice the difference. It can reduce the visual eye fatigue and discomfort caused by using a computer or mobile phone.Relieve headaches and sleep comfortably. | 【GREAT VALUE 】：With the convenient set of 3 pairs of Progressive Multifocus Readers, keep a pair at your desk, in your bag and your favorite reading spots.You can have a clear visual experience anytime, anywhere, and avoid forgetting the glasses. Excellent gifts for men women. | 【90 DAYS MONEY BACK GUARANTEE】：100% Satisfaction Guaranteed. Please just let us know if you're not happy with your purchase within 90 days, and we'll take care of you. So try them risk-free today.