ʻO ka pepa Polycarbonate Hollow he hana hoʻokalakupua wela maikaʻi loa, e hōʻemi pono ana i ka fluctuations o ka mahana o loko a me ka hoʻohana ʻana i ka ikehu. Me ke kūpaʻa ikaika o ka wā a me ke ola lawelawe lōʻihi, he koho maikaʻi loa ia no ka mālama ʻana i ka ikehu a me ka mālama ʻana i ke kaiapuni.