Kubikorwa byawe bya buri munsi yoga no kuzamuka imisozi, ukwiye gukora cyane mumikorere itazagutererana.Ihuriro ryiza ryibibuno birebire hamwe nibikorwa-bishingiye kumikorere.
Iyi siporo yimyitozo ngororamubiri Birushijeho kuba byiza, opaque na ultra-kurambura bikwiye (uburebure buhagije no guhumeka neza), imyenda yo kurambura inzira-4, kwikuramo, gukama vuba.