This technique

was called Kad-Chuck (wrapped with threads) or Muay Kad-Chuck
(boxing with thread-wrapped hands). Boxers wore a head band, called the
mongkon, and an amulet, or pa-pra-jiat, wrapped around their upper arms when
they fought. Boxers did not fight according to weight, height, or age. The rules
were simple: Fights lasted until there was a clear winner. Gambling accompanied
the bouts. Villages would often challenge each other to boxing matches and
boxing became an activity central to folk plays and festivals.