Singer Centaur Bobbin (Self-Winding With Spring)
Fits Singer Sewing Machine Models: 2010, 4613, 4617, 4623, 4663, 6234, 6235, 6250, 6251, 6267, 6268, 7000, 7005, 7027, 7037, 7043, 7050, 7060, 9113, 9117, 9124, 9133, 9137, 9143, 9217, 9224, 9240, 9417, 9900