ʻO ka pahu kila deformed, ʻo ia nā ʻaoʻao ʻaoʻao i hoʻopaʻa ʻia, ʻike ʻia hoʻi ʻo nā kaola hao, ʻo ka maʻamau me ʻelua mau iwi ʻaoʻao lōʻihi a me nā iwi ʻaoʻao i puʻunaue like ʻia ma ka ʻaoʻao lōʻihi.ʻO ke ʻano o ka ʻaoʻao transverse he spiral, herringbone a me ka crescent, ʻO ke kila kila Screw he kila pono no ke kūkulu ʻana i nā ʻāpana ma luna o ka liʻiliʻi liʻiliʻi, a loaʻa iā Kina kahi leo hoʻoiho i kēlā me kēia makahiki.