One step buttonhole. Just set in a button in the holder on the bottonhole foot and lower the lever, and a perfect buttonhole is automatically made in one step. Long free arm & convenient lift open extention table. The table is easily detatched, revealing the free-arm. Sewing accessories are conveniently stored inside the table. Convenient one-hand thread cutter. Since threads are cut neatly and held by the cutter, you can easily start sewing again without the trouble of tangled threads or an unthreaded needle. Quick foot conversion. Just pull the lever to remove the foot. For attaching, lower the lifter to snap it into place. Needle plate guide lines. Needle plate with duel seam guidlines in both inches and millimeters.