E rua ngā huinga ngira o te Mīhini Tuitui Porowhita Puoto Rua; tētahi kei te mata, tētahi kei te puoto hoki. Kāore he ngira totohu i roto i ngā mīhini whatu takirua. Mā tēnei whakaritenga ngira rua ka taea te hanga i te papanga, he matotoru rua atu i te papanga kotahi te kahu, e mōhiotia ana ko te papanga takirua te kahu.
