Nyob rau hauv cov kev ua si sab nraum zoov, ob qho riam ncaj thiab folding riam muaj lawv tus kheej zoo thiab qhov tsis zoo. Xaiv qhov twg yog qhov zoo dua nyob ntawm qhov kev siv tshwj xeeb thiab kev xav tau ntawm tus kheej.
Qhov zoo ntawm ib rab riam ncaj xws li cov qauv yooj yim thiab kev sib zog kom ruaj khov, thiab feem ntau ntau ruaj dua li fiting riam, haum rau sab nraum zoov cov haujlwm. Txawm li cas los xij, qhov tsis zoo ntawm ib rab riam ncaj yog tias nws tsis yooj yim nqa, yuav tsum tau muaj kev txhim kho scabbard, thiab feem ntau yog qhov hnyav dua li cov riam tas li.
Qhov zoo ntawm rab riam folding yog tias nws yog me me nyob rau hauv loj me thiab yooj yim nqa, haum rau kev siv txhua hnub thiab cov haujlwm sab nraum zoov txhua hnub. Tab sis nws qhov tsis zoo yog tias nws tsis muaj qhov ruaj khov thiab tsis haum rau kev siv hauv cov pej xeem.
Nws yog ib qho tseem ceeb heev kom xaiv rab riam xis raws li cov xwm txheej sib txawv sib txawv. Ncaj riam muaj ntau txhim khu kev qha thaum koj yuav tsum lis cov haujlwm hnyav lossis ib puag ncig heev; Folding riam yog qhov zoo dua rau kev siv txhua hnub lossis lub teeb nqa.
