ʻO ke kumu nui o ka mea hoʻoheheʻe i hana ʻia i ke kila, a ʻo ke kumu huila i hana ʻia me ka polypropylene (PP) me ka hiki ke lawe ikaika.
Hoʻohana ʻia ʻo TPR e like me ka mea huila o ka huila, nona ke kūpaʻa aila maikaʻi loa, ka pale ʻana i ka wai, ka pale ʻana i ka lāʻau a me ke kūpaʻa ʻana, a loaʻa nō hoʻi ka haʻalulu maikaʻi a me ka hoʻohaʻahaʻa leo.
ʻO ka waho o ka huila i hana ʻia me ka mea ABS, he anti-corrosion a me ka pale ʻana.ʻO ka hui pū ʻana o ka disc pōpō pōʻai holoʻokoʻa a me nā pōpō he haʻahaʻa kiʻekiʻe a me ka hiki ke amo.