The Adi (Dafla, Minyong, Abor, Galong) women wear a distinctive locally made ornament benyop – the belt on which series of three, five, seven or nine brass discs are strung on a cane, screwpine fiber or leather cord. The largest disc, its spiral motif represents the wheel of life, is placed at the centre, the others arranged in graduated sizes. This ornament is worn by girls and women until the birth of their first child. The origin of the benyop is explained in a local myth. A male deity fell in love with a mortal woman. Whenever they made love he gave her a benyop disc. When a child was born she removed the disc girdle.
Belts decorated with natural stones or with cowries can be also found in some tribes of Arunachal Pradesh.
Source:(local-moda.blogspot.in)