I got a set a while ago and the largest had a rough jagged area. I contacted the company and was immediately refunded me. I repurchased the rings while I was reading the refund email. This company stood behind its product 100% and that’s only the most recent reason that I have supported and will continue to support this company and invest a small fortune in their products. The quality is well beyond the others. They have precision in an industry that estimates their estimates. The products I’ve gotten from them, and the total is close to 100 but I’m not counting. Many of those products have been put to work and had birthdays of their own. Some of them multiple birthdays. But they keep charging and vibrating and pleasing. These high polish rings are perfect for any of the listed sizes and I measured every dimension and everything measured exactly as stated. I have some from others that measured in mm for precision and were 2-3mm different than the claim. I measured 6 rings(2 sets) and they were exact to the mm. Big thumbs up for quality and value. Anything related to intimate play gets looked for purchase by me from one company first, if they have it, which they probably do. And that’s not changing. They’re the best out there and competing with much more expensive products and dominating that competition. I don’t usually leave long reviews but sometimes it’s important to say everything so that people realize that some companies are still about people and go above and beyond.