Steel Barbell with Abalone Shell
The below measurements are approximate:
- The abalone shell end measures 4mm and is fixed
- The back ball measures 4mm and is externally threaded
- The abalone shell is encased in resin
Jewelry is measured through a gauge system (see chart below). The higher the gauge number the smaller the wire is. A standard "earring" is usually 20 gauge. Jewelry gauges/sizes can vary between manufacturers. There is no universal regulation on companies to make a standard size in body jewelry. A big part of this is that some jewelry is made overseas and measured in millimeters. And in the USA jewelry is measured in inches/gauges. So many times jewelry can be anywhere from .5mm to 1mm different.