Isakhelo esiphambili se-caster senziwe ngentsimbi, kwaye isondo lesondo lenziwe nge-polypropylene (PP) enegunya elinamandla lokuthwala.
I-TPR isetyenziswa njengesixhobo somphezulu wevili, esinokuxhathisa i-oyile ebalaseleyo, ukunganyangeki kwamanzi, ukunganyangeki kweziyobisi kunye nokunganyangeki kokungunda, kwaye ikwanokufunxwa kakuhle komothuko kunye nokunciphisa ingxolo.
Umphandle wevili lenziwe ngezinto ze-ABS, ezichasayo kunye nokungagugi.Ukuhlanganiswa kwediski yebhola ejikelezayo jikelele kunye neebhola zinomthwalo ophezulu kunye nomthamo oqinileyo wokuthwala.