He hiʻohiʻona maikaʻi ke ala ʻo Concertina a he kūpono ia no ka hoʻohana ʻana ma hope o ka hoʻonui ʻana, e hana ana i kahi pā palekana kūpono me ka waiwai anti-piʻi a me ka ʻoki ʻoki.ʻO nā mea maʻamau he galvanized a i ʻole ke kila kila.