ʻO ka ʻili kūlohelohe PVC i hana ʻia e Bensen ʻaʻole ia wale nō ka maʻalahi, ka māmā, ka wai a me ka moisture-proof, akā hoʻohana nui ʻia, ka hapa nui no ka hoʻonani ʻana o nā kaʻa i loko.Hiki iā Bensen ke hāʻawi iā ʻoe.E ʻoluʻolu e kelepona mai iā mākou no nā kikoʻī hou aku.