Original Singer Top Hat Cam Set Fits Models 401, 403, 411, 431, 500, 503, 600 series
-Original Singer sewing machine top hat cams, set of 20.
-Included is cam numbers 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 18, 19, 20, 21
-Fits Singer models 401, 401a, 403, 403a, 411, 431g, 500, 500a, 503, 503a, 600 series touch-n-sew