(1) Uluhlu lobunzima: Ukusuka kwiimodeli zokukhanya ezinobunzima obungaphantsi kwe-1kg ukuya kwiintente ezinkulu zosapho ezinobunzima obungaphezulu kwe-20kg. Ubunzima bokukhanya buhlala bufuna ukuthomalalisa ngokwendawo kunye nokuqina.
(2) Ubungakanani bokupakisha: Ubude obucinezelweyo buvela kwi-30cm ukuya kwi-80cm, kwaye ububanzi buqhelekile kwi-15-30cm. Uyilo olunokuchithwa lunokulungelelanisa ngcono kwiindlela ezahlukeneyo zothutho.
(3) Inkqubo ephetheyo: Ubhaka ozinikeleyo{1}}ophethe izisombululo zesimbo, ukupakishwa okwahlulahlula, kunye noyilo lwesiphatho se-ergonomic konke kungaphucula ubuntofontofo bokuthwala umgama omde{2}.
