Urwembenanone yitwa konsertina coil cyangwa urwembe rwicyuma cyogosha.Ni ubwoko bushya bwuruzitiro rwizamu.Hamwe nicyuma cyiza kandi gityaye hamwe ninsinga zikomeye, insinga zogosha zifite ibiranga ingaruka nziza zo gukumira, isura nziza, kwishyiriraho byoroshye, ubukungu nibikorwa bifatika nibindi bintu.

   Urwembeikoreshwa cyane munzu yamagorofa, imitwe yumuryango, gereza, uruzitiro rwumupaka, imirima ya gisirikari nizindi mbuga zisaba uruzitiro rukomeye n’umutekano. Umugozi wogosha urashobora gushyirwa mubice bya konsertina, insinga zogosha zicyuma, ubwoko bwambukiranya nubwoko buringaniye ukurikije uburyo bwo kwishyiriraho .