Ko te kiriuta hainu tarapuna he taputapu whakamāmātia motuhake i hangaia hei waihanga i ngā mata iti rawa, ōrite hoki me te iti noa o te tuanui, e whakamahi ana i ngā karu whakamāmātia iti rawa me te hanga tūtohu hei waihanga i te māmātanga e nui ana mō ngā tono ina ko te tino pai o te mata te mea matua. Ko te āhua rerekē o te kiriuta hainu tarapuna ko tana whakamāhi i ngā rahi iti rawa, e 600 ki te 2000 grit (me te nui ake i etahi wā), me ngā karu whakamāmātia ōrite te rahi me te whetohia pono hei tango i ngā paparorohiko iti noa. Kei te tūhono ēnei karu ki tētahi paparorohiko ultra-thin, whitiwhiti—e huihui ai te pepa kounga teitei, rānei he kiri utu māmā—e whakaae ana i te kiri ki te whakauru atu ki te tuumomo, ka tūpono te whakamāmātia kotahi kaua ko te whirikotia nui ka waihangatia pea he aratau hou. Ko te kaihono he rautaki ringaringa ranei he kai hono paraihe e mau ai ngā karu iti kaua ko te waihanga i tētahi takotoranga paku e whakarupeke ai i te mahi whakamāmātia. Ko te kiriuta hainu tarapuna i hangaia kia mimitia ai ngā ngoikera iti rawa mai i ngā kiri whakamāmātia kaha ake, pērā i ngā torehuruhuru iti, ngā toretonga porowhita, te rerekētanga o te tarapuna, na reira he tino pai mō ngā waahanga whakamutunga. I roto i te mahi rakau, ka whakamahiahia hei rui i ngā taonga taone, ngā taputapu puoro, ngā toi rakau mō te tinga, te varnishing, i reira e whakapai ake ai i te mārama me te rohe o te mutunga. I roto i te tāone motukara, ka whakamahiahia ki te hainu tarapuna kia whakakaha i ngā kapi horapa, te tango i ngā holograms me ngā torehuruhuru iti kia waihanga i te ata tahumaero. I roto i te whakaputa irirangi, ka whakapai ake i ngā kāpua pāpaku me ngā wae koura, ka whakapai ai i te māmātanga o ngā mata kia kaua ai te hohonu o te puehu me te whakapai ake i te takotoranga. Ko te rahi iti rawa me te paparorohiko whitiwhiti e tino whai hua ana mō ngā taputapu makere, pērā i ngā rakau makere, ngā pāpaku, me ngā metara kore-tirona pērā i te parauri me te parawhenua, i reira ka pakaru te hainu tarapuna kaha. He maha o ngā momo e wātea ana, e āki ai i te hainu tarapuna me te wai, rānei he kai whakamāmātia e iti iho ai te whakarewa, e kawe ai i ngā paru, kaua ko te karu e hereherea ai me te whakapai ake i te mutunga ōrite. Ko te kiriuta hainu tarapuna e whakamahia ana i te taha o te iti noa o te whirikotia me ngā nekehanga porowhita, e iti nei hei whakaputangia he aratau hou, e hiahiatia ana te ringaringa tūpato, rānei ngā taputapu motuhake kia tino pai ai. Mō ngā kaihanga toi, ngā kaiwhakamāmātia, me ngā kaihokohoko e nui ake ai i te āhua me te tika o te mata, ko te kiriuta hainu tarapuna ko te waahanga whakamutunga ki te waihanga i ngā mata e whai tikanga ana, engari hekenga hoki i te aroha me te hinengaro ki te tuumomo.