On the advice of Frauenörztin I fetched a flexible navel piercing (about halfway through the pregnancy). It could be attached and close smoothly. I did not have it shortened. My stomach was not so great and I wanted to have room for maneuver. Toward the end, the paint was scraped to the "feet" (I found now is not bad, because I wanted to replace it anyway after birth) and the piercing fit on the length perfect. It ignited nothing and was very easy to clean. I would buy again at any time.