Excellent Product - Great Price - Great Customer Service. I've now ordered a few times from this site, and their retainers are fantastic. They arrive and the fit is perfect. The retainers last and are easy to clean. But also, when I have a problem, it is easy to get in contact with someone who can answer your question quickly. And you can't beat the price. I think my orthodontist wanted 4x as much for a pair of retainers.