Vintage Singer automatic zigzagger attachment with 4 cams, compatible with low shank machines including the model 15, 66, 99, 128, 201, 221 & 222K Featherweight, etc. Very nice vintage condition, the attachment is clean and rust free, the cams may have typical paint chips / wear. Original instruction manual included, but NO box. Original, genuine Simanco part #160985, 161102 or 161157. Comes with the following stitch cams #161000, 161001, 161002, 161003.