ʻO kahi ʻōpala ʻōpala he ʻāpana ʻokoʻa o ka ʻāina a i ʻole ka ʻeli ʻana e loaʻa ai nā ʻōpala hale a me nā ʻano ʻōpala ʻino ʻole, e like me ka ʻōpala paʻa pāʻoihana, nā ʻōpala ʻino ʻole, a me nā ʻōpala paʻa ʻole pōʻino.He mau hana kānana kiʻekiʻe ka Monofilament i ulana ʻia i ka ʻenekini ʻāina ʻāina.