Numufata wivu hamwe nibikoresho bitatu bishobora kugabanwa, kimwe nigikombe hamwe nubutaka.Ibyiza byu gufata ivu nuko byoroshye cyane guteranya, wongeyeho biroroshye koza, bitezimbere uburambe bwawe.
Ubwinshi bwayo ni garama 90 gusa, nazo zituma zigenda cyane kandi zishobora gukurwa mumufuka igihe icyo aricyo cyose, ahantu hose iyo zisohotse.Ingano yacyo ihwanye na 18mm, kandi igitsina gihuriweho gishobora guhitamo igitsina gabo nigitsina gore.