The blades is made of 420 stainless steel unique punching blade technology, razor sharp for crisp, smooth cuts and grating. Can create perfectly chopped onions, tomatoes, and peppers for salsa. This mandolin slicer is a practical kitchen tool, and the vegetable chopper can shorten your preparation time to just a few minutes. The vegetable shredder is made of first-class materials and food-grade materials. A vegetable chopper can undoubtedly improve your health.