... Zigzag Sewing Machine adopts fork feed ,needle movement, link thread take-up, bid hook ,and top and bottom feed to fo For Lockstitch Zigzag Sewing ... hook ,and top and bottom feed to forms zigzag sewing .It's strong sewing ability ,perfect performance and steady stitch ,It's ... efficiency because of the big rotating hook .Suitable for sewing on leather, canvas and etc. Lockstitch Zigzag Sewing Machine