Application:1.for sewing all types of medium to heavy weight materials2.designed for stitching tubular and curved work;3.suitable for sewing caps, cushions, boots, shoes, bags,luggage, travelware accessories, etc; Features:1 newly designed set of gear2 vertical axis hook3 reverse stitching4 safety clutch prevents hook from being damaged5 compound feed and walking foot mechansim assures even feeding of materials