This machine is suitable for light and medium-weight materials such as shirts, coats, jeans and slacks etc. With special feed-off-arm, it's specially designed for joint-sewing for tubular section, such as sleeve and trousers.Model Material Needle Number of needles Number of threads Fold seam Presser Lift Height(mm) Needle Gauge Max. Sewing Speed(s. p. m) Packing Size L. W. H(mm) GW/NW(kg) TJ-927 Thin material, shirt, overcoat and so on TV*64NY#140 2 4 3 12 1/16" 1/4" 4000 605*550*500 39/65