Likaroloana:
1.Silinda e kholo le lipuo tse ngata tsa lock, ts'ebetso e phahameng ea tšireletso
Moralo oa 2.Ergonomic, switjha e bonolo haholoanyane
3.Sebelisa theknoloji ea morao-rao, ts'ebetso e ntle e khahlanong le bosholu