■ Umcamelo wesihlalo ulungiseka kalula futhi ungasebenza ngesandla esisodwa.
■ I-engeli yangaphakathi yezibambo iklanywe ngokwezimiso ze-ergonomic.
■ Uhlelo lokumelana nebhande oluxhunywe ngebhande lulandela ijika lamandla emisipha, lushukumisa ngokuphumelelayo imisipha eqondiwe phakathi nenqubo yokuzikhandla.