Ikigega cyuma kitagira umuyonga cyakozwe mu gutwara ibintu bisaba isuku n’isuku ryinshi, nkibicuruzwa byibiribwa, imiti, n’imiti. Ibintu bidashobora kwangirika byibyuma bitagira umwanda bituma ihitamo neza gutwara ibicuruzwa byoroshye bisaba umutekano muke nisuku. Izi romoruki zikoreshwa cyane mu biribwa, ibinyobwa, n’inganda zikora imiti, aho isuku n’umutekano byibanze. Imashini zitwara ibyuma zitagira umuyonga zitanga urwego ntagereranywa rwo kurinda ingese no kwangirika, bigatuma ubusugire bwibirimo bugumaho mu bwikorezi. Ubuso bworoshye bwibyuma bidafite umwanda nabwo butuma izo romoruki zoroha gusukura, gukumira umwanda no kubahiriza amabwiriza y’umutekano w’ibiribwa. 

Iyi romoruki iraboneka mubunini butandukanye kandi irashobora guhindurwa nurukuta rukingiwe hamwe na sisitemu yo kugenzura ubushyuhe, bigatuma bihinduka mugutwara amazi ashyushye nubukonje. Iyubakwa rikomeye, rirambye ryimodoka zitwara ibyuma zidafite umwanda zituma ubwikorezi bwimiti, amavuta, nandi mazi yangiza, bituma bahitamo kwizerwa munganda kwisi.