Ubwoya bwuzuye-zip ni ikintu cyoroshye, cyoroheje cyogukora ingendo zisanzwe, akazi ka buri munsi, nakazi kakazi hamwe nibikorwa byo hanze kuva mumugongo no gusiganwa ku maguru kugeza kumaguru.Hatariho ingofero, umukinyi wo hagati arahuza neza munsi yikoti yo hanze.