Abakora ibibuno bifata ibyuma bishyigikira ibyubaka bigezweho hamwe nibice bya acetabula, ibiti byigitsina gore, bitwaje isura, ibyasubiwemo, hamwe nibikoresho byo kubaga bihuye. Ku bagabura amagufwa, amatsinda yo gutanga ibitaro, hamwe nabatumiza mu mahanga, guhitamo utanga umusimbuzi wibibuno bikubiyemo ibirenze kugereranya izina rizwi cyane cyangwa igiciro cyatewe.