Ibiryo ubu ni ikintu kizwi cyane mububiko {{0} rero, ibipimo nubwiza bwaKugaragaza IbiryoKu isoko nabyo ni hejuru .} byemewe mbereIbiryo Byerekana Ibiryomubisanzwe bifite umutekano, kuramba, kubera guhagura ibiryo byihuse, niba gusimburwa kenshi, bizazana ikibazo kubakiriya, kuko umukiriya akeneye igihe cyo kubimenyera .
Ibiryo byerekana ibiryozagenewe kugenzura uburebure bwa 1 .} 5 m cyangwa mubisanzwe, bityo abakiriya batoranijwe mugihe cyibicuruzwa birashobora kuba byoroshye cyangwa kurambura ukuboko kugirango ugere.