BodyJ4You 16G Septum Clicker and Horseshoe Circular Barbell 16 Gauge Surgical Steel - 2 Pieces;

Septum Size:
Bar Length: 7.8mm
Inside: W:10mm, H:8.5mm
Whole: W:15.5mm, H:8.6mm
The 16G 2 Pieces Set comes with : 16G Timeless Circular Barbell, A basic piece for any body jewelry wearer.
and 16 Gauge 3/8' Surgical Steel Clear CZ Septum Clicker
When shopping for a septum piercing, remember to look over Piercing Size Chart to make sure you understand what the measurements actually mean.
All of these body jewelry measurements, and specifically, all of these septum sizes, are going to help you determine which septum is going to fit and look the best on you.