A type of body jewelry made specifically for a septum piercing. Shaped rather like a horseshoe, it's designed to fit into the piercing and then flip up into the nose, rendering the piercing invisible and allowing the piercee to continue gainful employment, maintain harmony with relatives and walk around without being asked "Did that hurt?" by curious passerbys. Standard gauges are between 18 and 6. Unlike most retainers, it is suitable as initial jewelry in the piercing.

See: Everything to do with body piercing