扳指

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)

finger / to point at or to / to indicate or refer to / to depend on / to count on / (of hair) to stand on end

to pull / to turn (sth) around / to turn around (a situation) / to recoup

variant of 攀[pan1]

erhua variant of 扳指[ban1 zhi3]