SINGER Sewing Machine 14J250 Stylist II Serger Overlock Machine with 2-3-4 Thread Capability and Differential Feed 2-3-4 Stitch Capability provides more stitch variety Needle Threader & Wide Open Threading makes set-up a breeze Differential Feed eliminates stretching and puckering on all fabrics Cutting Width Gauge ensures the fabric is cut and sewn consistently 1,300 Stitches Per Minute allows professional speed for faster results. 110 volt sewing machine designed for United States and Canadian use only. This sewing machine is warranted for use in the US and Canada at 110 volts only.