For sewing extreme heavy materials such as handles suitcases or buiefcases, baseball mittens, seat belts, chair cushions, shoes, SPECIAL FEATURES AND APPLICATIONS1,Presser foot can be lifted up tp 20mm for sewing extremely thick materials.2,Movement of the presser foot can be infinitely.3,Free working space is 320mm suitable for large items.4,Large half circumgyration shuttle reduce number of ...