Tighten the screw on the wider side of the roller so that the width on both sides of the roller is the same. According to the official customer service of Taobao Fuxing Noodle Press, the rollers on both sides are different in width. You can adjust the screw on the wider side to make both sides the same. Fuxing brand household dough press is a national patented product and is the earliest domestic manufacturer of household dough press.