Brother XR9550 165 Stitch Computer Sewing Machine LCD 8 Buttonholes, Font, Ext Table, Threader, Start/Stop, Needle Up/Down, Speed Control, 8Feet, Case

OVERCASTING FOOT ('G' FOOT) The overcasting foot is used for sewing overcast seams and to help protect the edges of your fabric from fraying. It's perfect for knits, and helps provide a more professional finish.