Ingqokelela yeMarra itsala inkuthazo kwizinto eziphilayo ezifumaneka kwindalo. Imigca yanamhlanje, ecocekileyo yeqhekeza ngalinye yenziwe ngononophelo ukuze ibonise ukulula kunye nobuchule bangaphandle. Eyilwe ngentuthuzelo engqondweni, le ngqokelela iqhayisa uyilo oluphezulu olunikezela ngenkxaso engalinganiyo kunye nokuphumla, uyilo lwe-ergonomic luqinisekisa ukurhoxa apho abahleli banokukhululeka kwaye bahlaziye ngesitayela.