I have a deep piercing where the normal naval rings are a bit too short and tend to be uncomfortable.

This is extremely comfortable and is flexible. You do have to clean it more often than a stainless product, but I find it worth the comfort.

Only complaint is that the shipping took a bit longer than expected.

**Update 02/2013**  Still love the product, but I wish it had removable balls at both ends that could be replaced.  The the area behind the larger crystal at the bottom are turning black.  I think it is from oxidation.  I don't wear it all the time, so I would have thought it would last longer than this.