This is a vintage Singer Automatic Zigzagger sewing machine attachment set (Part No. 161008 / Model 301). The set includes the black metal zigzagger attachment piece with red control knob, the original graphic storage box, an insert box containing multiple red stitch pattern cams/discs, and original instruction and stitch pattern booklets. The item is in overall very good vintage condition with light, age-appropriate wear to the cardboard packaging and manuals. The metal attachment and plastic stitch cams remain clean and intact, making this a wonderful addition for collectors of vintage sewing machinery or functional use with compatible Singer sewing machines.