NGOSEW Darning Quilting Free Motion Guide Foot/Feet works with Singer Slant Shank 301 301A 401 401A 403 404 500A # P60417 High Quality Clear Quilting foot darning foot with Yellow Markings Free Motion Foot with Marking Guide FOR SINGER SLANT SHANK SEWING MACHINES Fits Singer 301 301A 401 401A 403 404 500A and many more Made in Taiwan