Material: plasticThis 4 pcs hook drive sprocket set is the perfect combination, everything is necessary part for the sewing machine, including 174491 large spindle gear feed, 174488 long drive gear, 163997 hook drive gear and 163328 hook gear174488 can be replaced with the following models: (153490, 313920 and 422408). Suitable for Singer model: 1030, 1036, 1425, 1482, 1485, 1486, 1488, 1490, 1492, 2000, 2001, 2005, 2010, 2110, 2112, 2102, 2105, 2106, 2108, 2114, 2114 2118 2210, 2302, 2303, 2304, 2315, 2330, 2404, 2430, 2502, 2503, 2504, 2515, 2530, 2623, 2638, 2662, 2712, 2718, 2722, 27324, 295, 275, 295, 275, 275, 27524290, 500 , 501-509, 510, 513, 514, 518, 522, 527, 530, 533, etc.174491 can be replaced by the following models: (177491, 422325). Fits Singer Model: 290, 495, 500-503, 507, 509, 510, 513, 514, 518, 522, 527, 530, 533, 534, 538, 543, 553B, 554B, 714, 720, 724, 734, 737, 740, 750, 755, 756, 758, 760, 763, 764, 770, 774, 775, 776, 778, 800, 813, 814, 830, 834, 838, 844, 900-3 920-3, 925 , 1021, 1022, 1030, 1036, 1221, 1425, 1482, 1485, 1486, 1488, 1490, 1492, 2000, 2001, 2005, 2010, 2102, 2105, 2106, 2108, etc. 163997 Hook drive gear fits Singer models: 417, 502, 518, 620, 625, 628, 629, 630, 630E, 635, 636, 638, 639, 640E, 646, 646, 648, 648E , 649, 714, 717 School, 719, 724, 734, 737, 750, 755, 756, 758, 770, 774, 775, 776, 778, 834, 900-3, 920-3, 925, 935U, 1036, 1200, 2000, 2001, 2005, 6704 and 6705 Produced by YOUGANG