Feature●Heavy Duty 44S 4411, 4423, 4452, 5511, 5523, 5532●Fits Singer models 118, 132Q, 140Q, 237, 239, 1105, 1116, 1120, 1130, 1500, 2250, 2263, 2638, 2662, 3321, 3709, 3722●3810, 3820, 3825, 6305, 6310, 6314, 6318, 6408, 6412, 6416, 6423, 6510, 6550, 7312, 7322, 7350, 7380, DSX, DSX II●Quantum 9960, Quantum LE, Quantum XL100, Quantum XL150, Quantum XL1000, Quantum XL3400, Quantum XL5000 and Quantum XL6000●SewNote Guarantee - Premium quality that you can trustDescription 20 Pack of class 15 bobbins. Fits Singer models 118, 132Q, 140Q, 237, 239, 1105, 1116, 1120, 1130, 1500, 2250, 2263, 2638, 2662, 3709, 3722, 3810, 3820, 3825, 6305, 6310, 6314, 6318, 6408, 6412, 6416, 6423, 6510, 6550, 7312, 7322, 7350, 7380, DSX, DSX II, Quantum LE, Quantum XL100, Quantum XL150, Quantum XL1000, Quantum XL3400, Quantum XL5000 and Quantum XL6000.