1. Abadlali be-PU:Ukuthi ama-caster asebenza ngaphakathi noma ngaphandle, angahlangabezana nezidingo zakho. 2.Abadlali be-TRP: Angasetshenziswa ezimeni ezidinga umsindo omncane futhi asebenze ngokuthula, njengokusebenza emahhotela, ezintweni zezokwelapha, ezitezi, ezitezini zamapulangwe, kuma-tile phansi ....
3. Izigqoko zenayiloni nezinsimbi: Ama-casters afanele izindawo lapho umhlabathi ungalingani noma lapho kunezinsalela zensimbi phansi.
4. Ama-rubber casters: Ama-casters awafanelekile ngaphansi kwesimo se-asidi, amafutha kanye namakhemikhali.
5. Ama-Pneumatic casters: Ama-caster afanele umthwalo omncane kanye nemigwaqo engalingani.