Ko te whakapōtaia o te taha whakarewa he tukanga tango i ngā taha koi, i ngā taha kōpiko rānei mai i ngā wāhanga whakarewa hei hanga i tētahi mata maeneene, haumaru hoki. He mīhini pakari ngā huri para e huri ana i ngā wāhanga whakarewa i a rātou e whāngaihia ana, e tango tere ana i ngā para taumaha katoa me te whai hua. Ka whakamahia e ēnei mīhini he raupapa whitiki huri me ngā paraihe hei haehae ngāwari i ngā puranga paru taumaha rawa atu.
