ʻO nā mea hoʻoheheʻe pōleʻa he mau spherical magnet liʻiliʻi i hana ʻia me nā mea magnetic like ʻole e like me neodymium, ferrite, a me Alnico. Hoʻohana pinepine ʻia lākou i nā noi like ʻole me nā mea pāʻani hoʻonaʻauao, nā hana hana, a me nā mea hoʻonaninani magnetic. He ikaika loa kā mākou neodymium a hiki ke paʻa i ke kaumaha nui e pili ana i ko lākou nui. Kūʻē lākou i ka demagnetization a he lōʻihi ke ola.