Sailrite Ultrafeed LS-1 PLUS Heavy-Duty Walking Foot Sewing Machine Straight stitch walking foot sewing machine that easily sews through heavy materials like denim, upholstery fabrics, and heavy canvas (tried and true in up to 10 layers of heavy canvas). Includes the Power Plus Balance Wheel, which offers twice the power and size of a traditional flywheel. The patented Posi-Pin clutching system provides 100% power transfer from the balance wheel to the needle. Must-have features include the extra wide presser foot with a built-in piping tunnel, the high, 3/8 foot lift and a variable stitch length of up to 6 mm. Top-notch customer support from Sailrite with a comprehensive guidebook; Set-up, Use and Maintenance DVD; personalized support and a 2-year limited warranty all included.