● ʻAʻohe wahi e peʻe ai nā ʻāpana mānoanoa, ke kūpaʻa wela kiʻekiʻe, ka pale ʻana i ka corrosion
● ʻO ka elasticity kiʻekiʻe, ka hoʻolōʻihi manuahi me ka ʻole deformation, wai a me ka ʻaila-hōʻoia
● ʻO ka hoʻolālā e kau ana, mālama i ka lewa, palekana lima
● ʻO loko concave a me convex, ʻoluʻolu a me ka paheʻe ʻole, ka wela wela a mālama i kou mau lima