Materials - These two different slicers use safety materials for the handle part. They use ABS and TPR materials, which have excellent wear resistance, oil resistance, heat resistance and dimensional stability. Very durable for use.Austenitic Stainless Steel Needles - The part of needles use the austenitic stainless steel needles, which have strong rust resistance and corrosion resistance. Provide you with safe and healthy slicers, at the same time easy to use.Stainless Steel Soap - The soap can be rubbed against objects, releasing iron ions that combine with odor molecules to remove the smell. For the first time, it takes 5 to 6 hours to work properly. Effective use time can last 3 to 5 years.Easy to use - Just simply insert the slicer into the food you want to cut, then run the knife between the needles as wide as you want. One-time forming, simple and convenient, and easy to clean.