Awesome product! Awesome product!! My boss had the readers in a little case on his phone and I asked how he balanced them on the tip of his nose. He let me try them and I was amazed at the "sandpaper like" texture on the pads that provide that magic friction to stay on. I tried them on and was amazed at the clarity as well as how light they are. I opened my Amazon App and ordered a pair right then and there in the same strength. They were delivered the next day. I went to register them as instructed for the lifetime replacement warranty and got guidance on their LIVE CHAT. I was asked to share a copy of my Amazon receipt and it was done! To steal the line from GEICO, "It was so easy a caveman could so it!" Thanks, ThinOptics!!