ʻO ka pā pipi he ʻano pānaʻi holoholona no ka hoʻohua holoholona ma nā mahiʻai.Hana ʻia ia mai nā paipu kila oval a me nā paipu huinahā.ʻO nā paipu oval i hoʻopaʻa ʻia i ka galvanized a laila pena ʻia i ka mālama ʻana i ka ʻili.ʻO kona mānoanoa ma kahi o 1.5-2mm.