1 Applied with the newly improved device. so increased the function & strength & durability, and simplified the maintanance. 2 Walking foot and feed dog make uniform and beautiful stitches to be obrained. 3 Open type of top cover specified the maintanance. 4 Applied with large hook ensures high sewing efficiency. 5 Suitable for stitching the small-curved portions & their demensional articles, such as the cylinder materials, shoes, handbag and leather products etc.