I have been having trouble healing my piercing, and upon research I learned that even stainless steel can have small amounts of nickel in it. Gold is really the best for new piercings. This ring is nice quality, looks just like the pictures, it came sterile, and it is internally threaded. That is KEY! Externally threaded jewelry will scratch and irritate the piercing site. Unfortunately my piercer used an externally threaded, stainless steel barbell. Now I know better.
The ball stays nice and secure, I have had no issue with it coming unscrewed. My piercing has really turned a corner in it's healing, and I think this belly ring has played a part in that.