Set of 20 ALUMINUM BOBBINS for PFAFF Model Home & Industrial Sewing Machines. Pfaff bobbin number : 9033A The metric measurements for this bobbin is 22MM wide and 8.9MM thick. These top-quality aluminum bobbin will fit many models of PFAFF Home and Industrial Sewing Machines. Aluminum bobbins are considered the Top-End "Luxury Bobbins". They offer less resistance which translates to less drag to the bobbin thread tension. These bobbins will fit PFAFF Industrial Sewing Machine models : 138, 234, 238, 331, 333, 335, 437, 438, 439, 463, 480, 9063 They will also fit following PFAFF Home Sewing Machine models : 90,130, 229, 230, 260, 261, 332, 360, 362, 807, 900, 1000, 1100, 1151, 1171, 1196, 1197, 1199, 1211, 1212, 1213, 1222, 1371, 1465, 1467, 1469, 1471, 1472, 1473, 1475, 1520, 1522, 1524, 1525, 1526, 1527, 1530, 1532, 1534, 1536, 1540, 1542, 1546, 2010, 2014, 2020, 2022, 2024, 2025, 2026, 2027, 2030, 2032, 2034, 2036, 2040, 2042, 2044, 2046, 2054, 2056, 2124, 2140, 2144, 6085, 6091, 6112, 6120, 6122, 6150, 6152, 6230, 6232, 6250, 6252, 7510, 7530, 7550, 7560, 7562, 7570 They will also fit these Sewing Machine Models : ADLER : 67, 68, 69, 76, 1296 ATTILIO FORTE : AF6 IVOMAQ : CI-2100-2A V SEIKO : HC-2B TAKING : TK-335, TK-335N ZSK : 116M, 167E, 168/6E-8E, 168M, 169E, 170E, 171E, 172, 174 And many more!!