扳指 [－－]

Jyutping baan1 zi2
Pinyin bān zhi

Definitions (Wiktionary)
  1. noun
    jadeite thumb ring

扳指 [－－]

Jyutping baan1 zi2
Pinyin bān zhǐ

Definitions (CC-CEDICT)
  1. ornamental thumb ring (originally a ring, often made from jade, worn by archers in ancient times to protect the right thumb when drawing a bowstring)