【THREE LEVELS OF VISION】:Progressive multi-focal glasses to meet all your needs. The upper part is half power amplification, suitable for walking, shopping. The middle part is a slightly reduced power amplifier, suitable for working on a computer, watching TV, etc. The bottom lens is full power. You can wear these glasses anywhere, anytime..【PROTECT YOUR VISION AND HEALTH】:Multifocal Blue Light Blocking Glasses Can Reduce Digital Eye Distortion,Block Blue Light, gaming and working under fluorescent lights and glare reduction,no worry about eye fatigue/blurred vision .let you have a better sleep..【COMFORTABLE FRAME AND lENS】:The frame is made of durable PC material, ultra-light and flexible. The spring leg design that can swing freely also reduces the squeeze of glasses on the head, suitable for all face shapes. High quality transparent lens, anti-blue light, clear vision, give you a different visual effect..【3 PACK PROGRESSIVE MULTIFOCUS READERS】:3 packs of beautifully crafted progressive reading glasses that block blue light, you can put a set of glasses where you need to read for easy daily use, or as a nice gift for your family and friends..【100% NO RISK WARRANTY AFTER SALE】: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.