Ikhoza kugwiritsidwa ntchito mumphepomasiku, shaft yolimba ya fiberglass, nthiti zosinthika zamagalasi a fiberglass, chivundikiro cholowera mpweya chodutsana kuti chiwongolere kupsinjika kwa mphepo yamphamvu, kuphimba ndi zingwe ziwiri zotsekera kuti zikhazikike bwino pamalo otsekedwa., ndipo imatha kupereka ntchito yabwino yoteteza mphepo panyengo yamphepo.