Na mgbakwunye na ijide karama mmanya 16, ihe njide mmanya nke ụwa niile nwere ike ịgbakọta.Nke a ji achọ mmanya njide dị mfe iji , ọ nwere ike iji otu tier, abụọ tier ma ọ bụ karịa, ọ mere na metal, na nwere a arọ-ọrụ imecha, na-eme ka ọ bụrụ ihe magburu onwe mgbakwunye na ọ bụla iri ụlọ, kichin, nwoke ọgba, ma ọ bụ. ezumike n'ụlọ.