Max sewing speed: 1000s.p.m Max stitch length: 15.0mm Lift of presser foot: 20mm Needle bar ... It works on the principle of GB-243, and the sewing apace is 762mm.It uses single needle, import large rotating ... toether with beautiful stitch. suitable for sewing some special articles such as high grade leather, sofa, lungages, tent, seat cushions ect. Flat bed sewing machine