423S Features: 24 BUILT-IN STITCH CHOICES VARIABLE STITCH WIDTH & LENGTH QUICK FOOT CONVERSION FREEARM FOR CIRCULAR SEWING ADJUSTABLE FOOT PRESSURE AUTO 1-STEP BUTTONHOLE BUILT-IN NEEDLE THREADER DROP FEED FOR FREEHAND EMBROIDERY CONVENIENT THREAD CUTTER ROBUST METAL BODY What’s in the box? Auto Sliding Buttonhole Foot Hem Guide Hemmer Foot (2mm) Screwdriver Seam Ripper Standard A foot Zipper Foot Foot Control Hard Cover Bobbins Needles Oil Instruction Book