Ko te kaitahuri wera te taputapu matua o te punaha waiariki, a ko te ngongo whakaahuru laser he waahanga nui o te whakawhiti wera.Hei tauira, ko te ngongo me te putea wera he hanganga whakawhiti wera me te ihirangi hangarau tiketike me te tukanga whakaputa matatini.