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Published on Dec 4, 2010
http://www.sailrite.com/Ultrafeed-LSZ... Part 1 - Introduction - See why the Sailrite Ultrafeed sewing machine is the world's best portable walking foot sewing machine! The Sailrite Ultrafeed LSZ-1 sewing machine is a straight stitch/zigzag sewing machine (Patent #6499415) featuring a mechanical walking presser foot that moves forward and back in time with the feed dog to ensure that the layers of fabric are consistently moving together through the machine. The result—heavy, bulky and even sticky fabrics like leather and window material are easily sewn with consistently symmetrical stitch lengths.