Cute and bright tropical drink belly ring in your choice of style on a custom length bar for best fit.   Choose your bar length from the reference below.
14g 316L surgical steel bar.

1/4"    - 6mm  
5/16" - 8mm
3/8"   - 10mm   (<-- This is the size most belly rings are outside of the US)
7/16" - 11mm   (<-- This is the size most belly rings are in the US)
1/2"   - 13mm
9/16" - 14mm
5/8"  - 16mm
3/4"  - 19mm
7/8" -  22mm
1"      - 25mm

I do not take returns or offer replacements because of hygiene issues.  Even if someone says they never wore it, I won't take the chance, so please contact me if you need more help determining your size!

Recommendations - If your belly ring fits just a little too tight, then 14mm is probably the longest you would need.  If the bar doesn't go through without quite a push on your skin, 16mm or 19mm is better.   The 22 or 25mm sizes are too long for most people.  If you have a shallow piercing that is barely there, you'll probably want the shortest 6mm bar.  If you're in doubt, check in at a piercing shop and ask how short or long would be best based on how your belly ring fits now.  A couple little millimeters can make a huge difference in comfort.    Also,  for longer sizes check out the ultra flexible belly rings for sports, pregnancy, and all around comfort.

Note: You should plan to remove enamel painted belly rings before going in the shower or pool.