I bought this for my Bruchband small, 3-week-old son. It has a kind of solid hemisphere, which is done on the umbilical hernia and so the intestine remains indoors. I thought it was great, because that it is at least not getting worse, although he screamed very Doll or had to deal with his flatulence. Of course it is it did not go away, but I had the feeling that he feels more comfortable with it.