Titanium (ASTM F67) 18g captive bead. An easy option for healed piercings like nostril, earlobe, lip, etc. Titanium beads are standard, and can be colored to match the ring, or can be in a contrasting color. Hematite beads are also available - these are the dark "gunmetal" colored beads that most of us expect on captive bead rings.
Ring diameter guidelines:
* 1/2" diameter are a stocked in limited supply and may become backordered. If so, they are generally available in 1-2 weeks. Large quantity orders may also take additional processing time.