Heavy Gauge Thick Segment Ring
Segment rings are just like BCRs, but instead of a ball, a segment of the ring itself clips out - hence the name.
This ring is surgical steel, and is available in 2mm, 2.5mm, 3mm, 4mm, 5mm and 6mm thicknesses.
Bar length of rings are measured by the internal diameter.
Please note, you will need ring opening pliers to fit these as they won't open by hand.