Chinhu chiri mubhokisi rinovhara fiber chinowanzova chepurasitiki kana simbi, rimwe nerimwe rinosarudzwa kuti rigare kwenguva refu uye ridzivirirwe munzvimbo dzinoshandiswa waya. Mabhokisi epurasitiki anowanzo shandisa polycarbonate kana ABS, iyo inodzivirira kuvhunduka uye isingadhuri. Mabhokisi esimbi, akadai seaya akagadzirwa nesimbi kana aruminiyamu, anopa dziviriro yepamusoro uye kugara kwenguva refu kana akaiswa munzvimbo dzinoda kumanikidzwa. Ose anobatsira mukudzivirira tambo dzefiber kubva kuguruva, mvura, uye mabumps. Mamwe mabhokisi anotosanganisa zvinhu izvi, achishandisa hwaro hwesimbi ine chifukidziro chepurasitiki, kuti awane mutengo/kushanda kwakaringana. Kusarudza zvinhu zvakakodzera kunoenderana nenzvimbo yebhokisi, mwero wekushandiswa unotarisirwa uye zvinodiwa zvekudzivirira. Chikamu chinotevera chinofukidza kuti chinhu chimwe nechimwe chingakodzera sei zvinodiwa zvakasiyana uye zvekufunga nezvazvo usati wasarudza chimwe.