|Drawing of a Huo Zhuan and its content, from 'Wu Bei Zhi (《武備志》)'.|
Huo Zhuan measured one chi by four chun by two chun, roughly comparable in size to a large TV remote controller. It is one of the more common Ming Chinese hand grenades. Like all early grenades, there's a risk that enemy combatant would pick up the grenade and throw it back.
|Huo Zhuan with three rows of Di Shu: cutaway view (above) and top view (below), from 'Wu Bei Zhi (《武備志》)'.|