Mangaia is renowned for its shell neckbands or "eis". PG certificate and diploma recipients wear black neckbands. The leaves of "P. spiralis" can be used to weave neckbands and armbands. All have purple neckbands with a centrally-placed band of gold ribbon. Girdles, necklaces, and neckbands of braided rattan incorporated with wild pig bristles are frequently worn.