The Trudeau 4 Sided Grater offers multiple grating surfaces: the coarse surface is ideal for cheeses and carrots, the fine surface is perfect for hard cheeses, nuts and chocolate, the rigid surface to be used with potatoes and citrus peel and the slicing surface for cucumbers, zucchinis, potatoes and much more. The anti-slip base and handle makes this grater very safe to use. The Trudeau 4-Sided Grater is dishwasher safe.