Made by Ooya Seisakusho, this palm-sized tin-plated copper grater takes the form of a tortoise, a symbol of happiness and a long life in Japanese culture. Using a technique dating back to the Edo period, craftsmen chisel each of the teeth of the grater with a tagane and an iron hammer. These professional-grade graters require very little pressure to use and preserve the aroma and flavor of the ingredients you are preparing. Ideal for onions, garlic, ginger, and citrus.