METAL FRAME: The Brother 1034D is a durable serger made with a high-quality metal frame and interior components. HIGH PERFORMANCE: A reliable 3 or 4 thread serger that can handle multiple layers of denim and other heavy materials. 1,300 STITCHES PER MINUTE: Get more serging done in less time by sewing up to 1,300 stitches per minute. Control speed with the included foot pedal. EASY TO THREAD: Easy-to-use, color-coded upper thread guide and lower looper threading system along with included instruction manual. INCLUDED ACCESSORY FEET: The 1034D comes with 3 snap on feet including standard, gathering and blind stitch.