This foot makes inserting invisible zippers very easy. The grooves on the bottom of the foot hold the zipper coils in place to avoid any slipping while sewing. For Singer models: 1100, 1105, 1107, 1116, 1120, 1130, 2623, 2638, 3709, 3722, 3750, 3800, 3810, 3812, 3820, 3822, 3825, 3860, 6038, 6510, 6550, 7300, 7312, 7330, 7360, 7380, 7460, 7422, 7424, 7426, 7436, 7442, 7444, 7462, 7463, 7464, 7466, 7467, 7468, 7469, 7470, 9910, 9920, 9940, CE-100, CE150, CE-200, CE250, CE350.
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