Please Note: Do not place the crinkle knife in the dishwasher. Using vacuum titanium ion plating technology, the surface is coated with a titanium film, which can effectively improve corrosion resistance and rust resistance. Placing it in the dishwasher will damage the titanium film on the surface, causing the potato knife to rust. Our crinkle knife is made of 420 stainless steel, which can improve hardness and wear resistance through heat treatment, while 304 stainless steel is flexible and cannot be heat-treated. For this reason, 304 stainless steel is used for making tableware instead of knives. Every stainless steel product will rust when water comes into contact for a longer time. Therefore, after each use, please wash by hand with clean water, let it dry completely, and place it in a dry and ventilated place to prolong its service life. Why Choose Our Stainless Steel Anti-Wrinkle Knives Our anti-wrinkle knives are equipped with stainless steel blades and non-slip plastic handles that are of higher quality, safety, durability, and ergonomics. Highly suitable for creating unique edges and waffle cuts on various fruits and vegetables. The WaveSlicer is a quality product that makes your meal fun and encourages your children to eat fruits and vegetables. Specifications: Material: Stainless Steel + PP Plastic Knife Size: 7.3 cm x 30 cm (2.9 x 11.8 inches) Blade Thickness: 1.5 mm Type: Fruit and Vegetable Slicing Tool Net Weight: 170 g Package Includes: 1 x Stainless Steel Handheld Wave Knife