For Singer models 2010, 4613, 4617, 4623, 6230, 6234, 6235, 6252, 6266, 6267, 6268, 7000, 7005, 7037, 7043, 7050, 7057, 7060, 9113, 9117, 9124, 9133, 9137, 9143, 9210, 9217, 9224, 9240, 9417, 9900.