Ikintu nyamukuru cya caster gikozwe mubyuma, naho uruziga rukora polypropilene (PP) ifite ubushobozi bwo gutwara.
TPR ikoreshwa nkibikoresho byo hejuru yibiziga, bifite amavuta meza yo kurwanya amavuta, kurwanya amazi, kurwanya ibiyobyabwenge ndetse no kurwanya ibishishwa, kandi bifite no kwinjiza neza no kugabanya urusaku.
Hanze y'uruziga rukozwe mu bikoresho bya ABS, birwanya ruswa kandi birwanya kwambara.Gukomatanya kwisi yose izunguruka umupira hamwe numupira bifite umutwaro muremure nubushobozi bukomeye bwo gutwara.