I dropped my Persol sunglasses and one of the lenses shattered. I am not sure how I found it but I found the Tajima site on line and decided to try it. I was really impressed with their descriptions on line and then placed an order. They promptly sent me a box to uses to send my frames in . When I did that , I had second thoughts on the particular lens I ordered and emailed them wanting to know if I could change . Jacob was really helpful and actually emailed me pictures of the two lenses side by side so I could see how they compared. Terrific service. I ended up staying with my first choice. Now that the sunglasses have come , I am really impressed with the Tajima replacement lenses. i will definitely order from them again. The turnaround time was about a week.