Outward convex wheel, more easy to thread.Add the end puller driving three in one function
Cover seaming with adjustable folder, movable presser foot, extend bigger range of sewing
Items.auto trimming with new design of upper thread holder, trimming precisely and wiring
Stably.New design of built-inset synchronizer , makes position precisely and sta bly, easy to
Adjust.mini led light included, easy for threading and adjustment.