Igwe mkpuchi okirikiri cylinder okpukpu abụọ nwere ụdị agịga abụọ;otu na ọkpụkpọ yana yana cylinder.Enweghị sinkers n'ime igwe jersey abụọ.Nhazi nke agịga a nke okpukpu abụọ na-enye ohere ịmepụta akwa nke dị okpukpu abụọ karịa otu akwa jersey, nke a maara dị ka akwa akwa akwa abụọ.