Isaha Mugihe igihe kirengana, amasaha yagumye uko yari. Guhindura ntabwo ari isaha isanzwe, ni ugusubira inyuma, igishushanyo mbonera cyisaha ntoya hamwe nimpinduka zoroshye zituma iba imwe mubwoko. Ukuboko kureba imbere kuzunguruka imbere mu mpeta yo hanze kugirango werekane isaha. Ukuboko gato kureba hanze guhagarara kwonyine kandi kuzunguruka kwerekana iminota. Ibinyuranye byakozwe mugukuraho ibintu byose byisaha usibye ishingiro rya silindrike, kuva aho ibitekerezo byafashe. Igishushanyo cyamasaha kigamije kukwibutsa kwakira igihe.
Izina ry'umushinga : Reverse, Izina ryabashushanya : Mattice Boets, Izina ry'abakiriya : Mattice Boets.
Iki gishushanyo cyiza nuwatsindiye igihembo cya zahabu mugihe cyo kumurika ibicuruzwa no kumurika imishinga yo gushushanya. Ugomba rwose kubona ibihembo bya zahabu byatsindiye abashushanya ibishushanyo mbonera kugirango uvumbure ibindi byinshi bishya, bishya, byumwimerere kandi bihanga ibicuruzwa byo kumurika nibikorwa byo gushushanya imishinga.