Chosavuta kugwiritsa ntchito, kutsegulira kwakukulu kumatha kudzazidwa mwachangu, kutsekedwa mwamphamvu, kutsimikizira kutayikira ndi kusindikizidwa, chogwiriracho chimapangidwa kuti chikhale chosavuta kunyamula ndikuyika m'thumba, chimatha kugwidwa mwamphamvu pakudzaza ndi kutaya, chitoliro choyamwa chimayenda. ndi yokhazikika komanso yosatsekedwa, ndipo valavu yoluma ili pamtundu uliwonse Idzasindikizidwa yokha mutatha kumwa kuti isatayike.Mapangidwe a sikelo ya voliyumu yakunja amakulolani kuti muzitha kuyang'anira momwe madzi amamwa komanso madzi otsalira munthawi yake.Zapangidwa ndi zinthu za TPU zosamva kuvala zolimba kwambiri komanso zotanuka.Chivundikiro cha fumbi chingateteze kuluma kwa silikoni kuti musatole fumbi.