Ko te kohao o roto o te kohao porowhita o waho ko te kohao taper me te 1:12 taper, ka taea te whakauru tika ki runga i te taper taper, me te awhina ranei o te ngahere kua oti te whakanoho ki runga i te axleless rakau whatu, a ka taea te whakatika i te waatea o te kawe. .
Ko te momo o te wae kawe e whakakotahi ana i te kawe okeoke me te turanga turanga.Ko te nuinga o te roopu hurihuri ko te pokapū o te whakakai o waho o te diameter o waho o te porowhita, me te kohao o roto o roto o te whare whanau kua whakauruhia, he rereke te ahua o te hanganga, he ao me te pai te whakawhiti.