He āhua ahu-toru, he porowhita te āhua kei ia pito, ā, he mata kōpiko e hono ana i ēnei porowhita e rua. Ka whakamaua he kakau, kia taea ai te rango te pīrori, ā, ka whakamahia hei taputapu peita, hei rōra waituhi hoki.
A three-dimensional shape consisting of two circular ends joined by a curved surface. A handle is attached so that the cylinder can be rolled, and used as a painting implement, or for rolling ink.