Piao Shi (飃石)

Drawing of a Piao Shi, from 'Ji Xiao Xin Shu (《紀效新書》)'.

Piao Shi (飃石, lit. 'Whirlwind stone'), also known as Shou Pao (手砲, lit. 'Hand trebuchet') during Song period, is the Chinese name for staff sling. It consists of a short cord tied to one end of a five chi bamboo pole, and is usually employed in siege defence alongside larger stone throwers.

Sling was actually fairly rare in China, as sheep husbandry wasn't an important part of ancient China's agricultural economy.