It uses the natural tensile or compressive strength of the metal the ring is made of, usually surgical stainless steel, niobium, or titanium, to hold the bead tightly in place. The bead or ball itself may additionally be made from coloured glass or ceramic, or a gemstone.
This is a popular piece of body jewelry because it conveniently allows the wearer to remove the ring by simply removing the captive bead, yet the bead is held so firmly in place that it will not easily fall out. Additionally, because of their closed shape and rounded edges, these rings do not easily snag on clothing, hair, or furniture, making them a popular choice for piercings which are still healing. However, its circular shape means that it can drag dried lymph back into the healing piercing, meaning that barbells are seen as being preferable for healing piercings.
Get familiar with your jewellery ...If you've never used a captive bead ring (CBR) before, it may take a little getting used to, so before you start trying to change your cbr or clean your piercing, it might be worth gettng used to how the captive bead ring works. With very fine gauge, or large gauge cbr's, special pliers may be needed, so getting used to these might also be a good idea - you don't want to damage your piercing or your jewellery. They're simple to use though, and only really necessary with certain types of cbr's, so have no fear, and your piercist will be able to explain it all to you.
Captive bead ring in eyebrow piercing - profile
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