Ichi ndi bokosi la ufa la maginito lawiri wosanjikiza.Maonekedwe ake ndi ozungulira.Woyamba wosanjikiza wa mkati cell ndi 59mm kukula, amene angagwiritsidwe ntchito kuika ufa, kuunikira ndi zinthu zina.Chigawo chachiwiri cha cell chamkati chimakhala ndi mabowo a mpweya, omwe angagwiritsidwe ntchito kuyika zofukiza za ufa, zoyera komanso zaukhondo.