Hamwe nuburambe bwimyaka myinshi mugukora imishumi 2 ya ratchet hamwe nudukoni , Lishenflex irashobora gutanga intera nini yimigozi 2 ya ratchet hamwe nudukoni . 2 imishumi ya ratchet hamwe nudukoni irashobora guhura nibisabwa byinshi, niba ubikeneye, nyamuneka ubone serivise kumurongo mugihe gikwiye hafi ya 2 ya ratchet hamwe nudukoni . Usibye urutonde rwibicuruzwa hepfo, urashobora kandi kwihitiramo imigozi yawe yihariye 2 ya ratchet hamwe nibifuni ukurikije ibyo ukeneye byihariye.