Shuttle Type Oscillating Shuttle / Open Type Race Body Bobbin Winding System Auto trip With Adjusting Screw Needle Threading Single Needle Lock Stitch Drive Hand, Treadle & Motor Stitch Length Control Handy Stitch Regulator With Locking Device Sewing Speed800-1200 Stitches Per Minute Thread Tension Control Thumb Screw Type Stitch Pattern Selector Up And Down Pressure Adjustor Thumb Screw Type Stitch Length6-30 Stitches Per 25mm