Roller adjustment knob: adjust the thickness of the dough, both sides of the same rotation adjustment, so that the thickness of the dough is uniform 2. Cutter adjustment knob: adjust the width of noodles, tighten the knob, grind out narrow noodles, loosen the knob, grind out the wide noodles, both sides of the knob need to adjust the same 3. Thickening stainless steel roller, the thickness is 4mm Specification: Material: Stainless Steel Voltage: 220V 50Hz Power: 750W Size: 400 310 370mm Noodle width: 220mm Stainless steel cutter: 3mm/9mm Frame Material: cold-rolled steel 2.5mm Shell Material: ABS plastic Package Included: 1 x FKM160Pasta Press Maker Noodle Machine 1 x set of Accessories.