Izithando zama-arc zikagesi, izigayo eziginqikayo ezinamandla amakhulu, ama-hoists, izitimela zikagesi, amapulazi omoya kanye neminye imithwalo izoba nochungechunge lwemiphumela emibi kugridi uma ixhunywe kugridi ngenxa yokungalandeleki kwayo kanye nomthelela.