Throughout the Pacific, some jewellery pieces are more common than others. For example, necklaces, earrings and headdresses of different sorts are all very common items used by Polynesians to adorn themselves. Some pieces, such as the wearing of masks, are only apparent in certain areas, such as Micronesia and with the aborigines of Australia. Breast plates were worn by the Māori, as well as many other small islands in the Pacific. Belts and adornments hung off them, are mainly situated around Papua New Guinea and its neighbours, while nose piercings are also found in that area. Overall, although jewellery pieces in the Pacific are very similar amongst the island nations, they are also varied greatly and each piece represents the wearer's beliefs, ancestry and nation to the observer.