Nkọwa Okwu · ngwa ọrụ
Oghere
Otu n’ime ebe 37 nwere nọmba dị na rotor. A na-akpọkwa ya: slot, cup.
N’ọnọdụ e ji ya
Fretngwa ọrụFretIhe nkewa igwe dị n’etiti oghere abụọ na wiil.Gụọ ya niile → na-ekewa oghere; omimi ya na ogo fret na-ekpebi ole bọọlụngwa ọrụBọọlụObere bọọlụ a na-atụba n’ụzọ ahụ megidere rotor. Bọọlụ ọgbara ọhụrụ bụ ivorine ma ọ bụ Teflon, 18–21 mm.Gụọ ya niile → na-awụli elu tupu ọ kwụsị. Ọnụọgụ oghere wiil roulette nwere dabere n’ụdị ya.
Ị maara
Wiil ndị ọkachamara nwere oghere e si n’otu ibe igwe kpụọ ka oghere ọ bụla ghara ịdị omimi karịa ibe ya, nke bụ isi mmalite mmasị na wiil osisi.