Bobbin Pfaff 91-018339-05 - for the machines Pfaff 541, 542, 543, 544, 720, 546, 551, 552, 553, 554 ,555, 591, 592, 593, 594, 595, 596, 720, 748, 1240, 1241, 1242,-720,-720(-900),-748,1243,1244,-720,-748,-900,1245,1246,-720,748,-900; Equivalent: Metal bobbins Pfaff 14356, 18339, 18480.