Kwishyira hamwe-kwishyiriraho bifite imirongo ibiri yumupira hamwe ninzira nyabagendwa ihuriweho nimpeta yinyuma.Ibi biha imitwaro imitungo yabo-ihuza, ikemerera guhuza inguni igereranije ninzu.Birakenewe cyane cyane kubisabwa aho guhuza bishobora guturuka ku makosa yo gushiraho cyangwa kuva muri shaft.Muri addiiton, idafunze-kwishyiriraho imipira ifite imipira yo hasi yubwoko bwose.