Serge like a pro with outstanding ease! The MO-1000 features a new convenient upper and lower looper air threading that easily threads with a strong whoosh of air sent from the electric motor. This amazing function dramatically alters upper and lower looper threading since you do not need to thread in order. 2-needle, 4-thread stitching allows for various sewing applications - from overlock stitching to rolled hem. Add serging techniques to your world of sewing and open new doors to design opportunities!