... furniture, golf bag and other extra heavy thick materials sewing Jingneng Brand XL-441/471 single needle unison feed cylinger sewing machine ... (extra heavy materials) FEATURES:Unison feed with needle,presser foot and feed dog,strong power to feed to assurepretty sewing ... and efficiency of sewing.Suitable for extra heavy materials sewing,such ascase,bags,sofa,furniture,golfbag,belt and ...