Most of the pregnancy belly rings we sell are approx. 2 inches (50mm) long. The PTFE bars are easily shortened to the length you desire. Rethreading 14g PTFE is usually very simple. (Thinner 16g PTFE is not so simple to rethread, and is not usually recommended.) For acrylics, bigger balls are sometimes easier to twist on, but for some styles the smaller balls work better. For dangles - always use the TOP ball. Avoid taking off the dangle end off.
Do not attempt to resize your pregnancy belly ring while you are wearing it.
Simply snip to desired length with clean scissors or sharp blade and screw the top ball back on. It will work best (especially with those finicky acrylics) if you cut the bar at an angle, as in the picture below.
The ball should thread back on easily. Don't over tighten. Unscrew it, then twist it on most of the way a couple times. If it doesn't twist on easily, you might need to make a bit sharper angle. If you end up with a really sharp angle, you might want to snip the very very tip off, so it doesn't poke you.
