Progressive Multifocal Reading Glasses Blue Light Blocking Computer Product Features ?High Quality Materials?TR90 frame material for durability and comfortable long-term wearing. ?Transparent Lens? - Transparent lenses are not easy to be scratched. Temple with firm and flexible, lightweight excellent ,toughness, and making these reading glasses not easy to be scratched. ?Anti Blue Light Lens & Reading Effortless?Blue light blocking glasses anti harmful blue ray, Protect the eyes from computer visual syndrome and reduce headache, Protecting eyes from invisible injurious blue ray which from Computer/ Reading/TV/Phones/Gaming/Pad etc. ?Progressive Bifocal & No Put On And Take Off? Now you looked up, vision was not blurred. They're the only ones that you can wear without taking them off to view things at a distance and everything not be blurry. The lower half is great for reading and the weaker mid to upper range is perfect for that 2-3 foot rang of a computer screen. ?Warranty?: 90 days free return, 1-year warranty against manufacturing defects. Product Description Once you do, you will love them. One glasses have three focal lengths. They transition nicely. The lower region of the lenses magnify up-close, the middle range, quite naturally, magnifies desktop distant objects, and the upper region brings across-desk objects into focus beautifully. estimate the focal planes to be at about one, two, and three feet, respectively. The use of anti-blue light lenses can effectively protect your glasses, perfect to use when using computers, mobile phones, reading book etc Note: If you haven't worn progressive lenses, be aware it takes a few days to get used to them. As two sides of the len is astigmatism disorder district, you need to turn around the head and eyes in order to see objects on your both sides clearly. Includes? 1 x progressive lenses reading glasses 1 x glasses case 1 x glasses cloth ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------Our stock all ships from our US-based warehouses.Shipped via UPS or USPS(depending on location and package weight) Unless stated otherwise, all orders will ship within 24 hours of your payment being processed.Check our feedback to see the great reviews of FAST shipping we offer.Shipping is always FREE If you are not 100% satisfied with your purchase, you can return the product and get a full refund or exchange the product for another one, be it similar or not. You can return a product for up to 30 days from the date you purchased it. Any product you return must be in the same condition you received it and in the original packaging. Please keep the receipt. If you have any queries, please contact us via eCRATER. We usually respond within 24 hours on weekdays. Thank you for visiting our eCRATER store!