Byuzuye mubucuruzi bwa buri munsi, birashobora kandi gukoreshwa mukuzamurwa, impano yisosiyete cyangwa ibirori ibyo aribyo byose, ubukangurambaga cyangwa kwamamaza ibigo byamamaza, imurikagurisha nibindi.

Ijambo: 

1. Nkubunini: Bitewe no gupima intoki, hashobora kubaho ikosa rya cm 1-2 mubunini. Ibipimo byateguwe kugirango bigufashe guhitamo ingano ikwiye. Nyamuneka upime wenyine kandi uhitemo ingano ijyanye.

2. Kubireba ibara: Ibara nyaryo ryikintu rishobora gutandukana bitewe nuburyo bwerekanwe, igenamiterere, nuburyo bwo kumurika. Amabara yibintu byerekanwe nibyerekanwe gusa.