Stainless steel sharp blade design, stainless steel hardened material is extremely tough Great for making with potatoes, zucchini, yams and sweet potatoes, carrots, and even radishes The electric spiral potato slicer comes in a tornado or spiral cut shape, perfect for use at home or in restaurants 3-position switch control, forward/reverse mode and automatic stop to prevent damage to the blade Four embedded fixed push shafts, not easy to slide, evenly spaced, same thickness