Wooden Handle Corrugated Ripple Wave Knife French Fries Knife Pastry Handmade Soap Cutting Device Potato Cutter. Corrugated stainless steel knife Material : 430 stainless steel, wooden handle Size : the overall length of 18.5 cm, 12.5 cm wide; The waves of 14 cm and 5 cm wide Blade steel hard, not easy to distort.