It is a mechanical device consisting of a metal block made in the form of a thick-sided box, of which both ends are open and the top hinged to form a lid.
Lukhando lokuyila ukugcina isinyithi esenziwe ngolwakhiwo ngobukhulu bamacala ebhokisi aithi omabini amacala avuleke ubuphezulu behenjisi obakhiwe kwisiciko.