Enjoy your reading glasses, We provide a 90-day money-back guarantee and lifetime warranty for all products. If you have any questions, you can contact us at any time. KEEP A PAIR IN EACH YOUR READING AREA.Convenient set allows you to keep a pair of readers in different places such as office,study room,drawing room,so you always have a pair handy. NO NEED TO REMOVE GLASSES. Small slim shape lens allows you simply look down to read when you need and look up your surroundings not have to continuously take them on and off. PORTABLE CASE.Creative case easily put in your pocket or bag for easy storage and portability,simply push down to open and access your glasses. EXCELLENT QUALITY,PREMIUM MATERIAL.Top quality hard alloy metal frame that are resistant to wear & tear and not easily to break off,flexible TR90 earpieces never pinching your head.