Fits Singer Models: 31-15 and 331, 1105, 1107, 1116, 1120, 1130, 1525, 3001, 3002, 3003, 3004, 3005, 3011, 3012, 3013, 3014, 4001, 4002, 4005, 4006, 4009, 4011, 4012, 4015, 4016, 4019, 4022, 5102, 5107, 5122, 5123, 5124, 5127, 5522, 5528