A na-ejikọ imi na-acha mmanụ na-ejikọ otu - ị nwere ọpụpụ nke ọzọ, site na 1 ruo nzọ (n bụ ọnụọgụ nke onye na-eleda). Nrụgide na-arụ ọrụ nke eriri eriri bụ 30 MMA nke kacha nta bụ 20, enwere ike ịta aka na aka na aka rụrụ arụ. Reinnornown: na-arụ ọrụ nrụgide 30 MILA, obere radius 50 mm, nwere ike ịnwe aka na aka ya, na-enyocha ya na aka rụrụ arụ.
